diff --git a/_calcul_dispo.html b/_calcul_dispo.html
index a6eae0c..36289fd 100644
--- a/_calcul_dispo.html
+++ b/_calcul_dispo.html
@@ -75,12 +75,7 @@
 
 	{{if $mvt.direction === 'input'}}
 		{{* déterminer le type de mouvement *}}
-		{{#foreach from=$config.input_nature}}
-			{{if $key == $mvt.operation}}
-				{{:assign type_mvt=$type}}
-				{{:break}}
-			{{/if}}
-		{{/foreach}}
+		{{:assign var=type_mvt from="config.input_nature.%s.type"|args:$mvt.operation}}
 		{{if $type_mvt == 'définitif'}}
 			{{:assign stock="%d+%d"|math:$stock:$mvt.amount}}
 			{{:assign
@@ -99,12 +94,7 @@
 		{{/if}}
 	{{elseif $mvt.direction === 'output'}}
 		{{* déterminer le type de mouvement *}}
-		{{#foreach from=config.output_nature}}
-			{{if $key == $mvt.operation}}
-				{{:assign type_mvt=$type}}
-				{{:break}}
-			{{/if}}
-		{{/foreach}}
+		{{:assign var=type_mvt from="config.output_nature.%s.type"|args:$mvt.operation}}
 		{{if $type_mvt == 'définitif'}}
 			{{:assign stock="%d-%d"|math:$stock:$mvt.amount}}
 			{{:assign
diff --git a/_get_config.html b/_get_config.html
index f03f643..d143240 100644
--- a/_get_config.html
+++ b/_get_config.html
@@ -8,41 +8,29 @@
 {{* config par défaut *}}
 {{:read file="./defaut.json" assign="config_defaut"}}
 {{:assign config_defaut=$config_defaut|json_decode}}
-{{*:debug config_defaut=$config_defaut*}}
 
 {{if $module.config.input_nature != null}}
-{{*:debug module.config.input_nature=$module.config.input_nature*}}
 	{{#foreach from=$module.config.input_nature item="elem"}}
-		{{#foreach from=$elem key=label item=value}}
-			{{:assign var="in.%s"|args:$label value=$value}}
-		{{/foreach}}
-		{{:assign var="config.input_nature." from="in"}}
+		{{:assign var="item" label=$label type=$type}}
+		{{:assign var="config.input_nature.%s"|args:$key value=$item}}
 	{{/foreach}}
 {{else}}
 	{{* pas de config enregistrée : utiliser la config par défaut *}}
 	{{#foreach from=$config_defaut.inputs item="elem"}}
-		{{#foreach from=$elem key=label item=value}}
-			{{:assign var="in.%s"|args:$label value=$value}}
-		{{/foreach}}
-		{{:assign var="config.input_nature." from="in"}}
+		{{:assign var="item" label=$label type=$type}}
+		{{:assign var="config.input_nature.%s"|args:$key value=$item}}
 	{{/foreach}}
 {{/if}}
-{{*:debug config.input_nature=$config.input_nature*}}
 
 {{if $module.config.output_nature != null}}
-{{*:debug module.config.output_nature=$module.config.output_nature*}}
 	{{#foreach from=$module.config.output_nature item="elem"}}
-		{{#foreach from=$elem key=label item=value}}
-			{{:assign var="out.%s"|args:$label value=$value}}
-		{{/foreach}}
-		{{:assign var="config.output_nature." from="out"}}
+		{{:assign var="item" label=$label type=$type}}
+		{{:assign var="config.output_nature.%s"|args:$key value=$item}}
 	{{/foreach}}
 {{else}}
 	{{* pas de config enregistrée : utiliser la config par défaut *}}
 	{{#foreach from=$config_defaut.outputs item="elem"}}
-		{{#foreach from=$elem key=label item=value}}
-			{{:assign var="out.%s"|args:$label value=$value}}
-		{{/foreach}}
-		{{:assign var="config.output_nature." from="out"}}
+		{{:assign var="item" label=$label type=$type}}
+		{{:assign var="config.output_nature.%s"|args:$key value=$item}}
 	{{/foreach}}
 {{/if}}
diff --git a/_nav.html b/_nav.html
index 007a7a8..ac6d921 100644
--- a/_nav.html
+++ b/_nav.html
@@ -3,7 +3,7 @@
 <nav class="tabs">
 	{{if $current == 'inventaire'}}
 		<aside>
-			{{if $cat == null || $cat == 0}}
+			{{if $subcurrent == null && $cat == 0}}
 				{{:linkbutton label="Ajouter une catégorie" shape="plus" href="categories/add_category.html" target="_dialog"}}
 			{{else}}
 				{{:linkbutton label="Ajouter un nouveau matériel" shape="plus" href="mouvements/ajouter_entree.html" target="_dialog"}}
diff --git a/config.html b/config.html
index 2aaab47..7052d47 100644
--- a/config.html
+++ b/config.html
@@ -11,16 +11,17 @@
 
 {{* lecture config (défaut ou enregistrée) *}}
 {{:include file="./_get_config.html" keep="config"}}
-{{*:debug config.in=$config.input_nature config.out=$config.output_nature*}}
 
 {{* types d'entrées qui ne peuvent être supprimées *}}
-{{#load type="movement" where="$$.direction='input'" group="$$.input_nature"}}
-    {{:assign var="locked_inputs." value=$input_nature}}
+{{#load type="movement" where="$$.direction='input'" group="$$.operation"}}
+	{{:assign var="op_label" from="config.input_nature.%s.label"|args:$operation}}
+    {{:assign var="locked_inputs." value=$op_label}}
 {{/load}}
 
 {{* types de sorties qui ne peuvent être supprimées *}}
 {{#load type="movement" where="$$.direction='output'" group="$$.output_nature"}}
-    {{:assign var="locked_outputs." value=$output_nature}}
+ 	{{:assign var="op_label" from="config.output_nature.%s.label"|args:$operation}}
+   {{:assign var="locked_outputs." value=$op_label}}
 {{/load}}
 
 <h2>Types d'entrées</h2>
diff --git a/config/ajouter_type_mouvement.html b/config/ajouter_type_mouvement.html
index cfbf1cf..2a5331e 100644
--- a/config/ajouter_type_mouvement.html
+++ b/config/ajouter_type_mouvement.html
@@ -12,14 +12,14 @@
 
 {{#form on="save"}}
 	{{* vérifier l'existence d'une entrée de même nom et générer le résultat *}}
-	{{#foreach from=$config.input_nature item=elem}}
+	{{#foreach from=$config.input_nature key=key}}
 		{{if $label|trim|tolower == $_POST.input_fields.label|trim|tolower}}
 			{{:error message="Ce libellé d'entrée est déjà présent"}}
 		{{/if}}
-		{{#foreach from=$elem key=label item=value}}
-			{{:assign var="in.%s"|args:$label value=$value}}
-		{{/foreach}}
-		{{:assign var="input_natures." from="in"}}
+		{{:assign var="input_nature.key" value=$key}}
+		{{:assign var="input_nature.label" value=$label}}
+		{{:assign var="input_nature.type" value=$type}}
+		{{:assign var="input_natures." from=input_nature}}
 	{{/foreach}}
 
 	{{* ajouter la nouvelle entrée *}}
@@ -32,14 +32,14 @@
 	{{/if}}
 
 	{{* vérifier l'existence d'une sortie de même nom et générer le résultat *}}
-	{{#foreach from=$config.output_nature item=elem}}
+	{{#foreach from=$config.output_nature key=key}}
 		{{if $label|trim|tolower == $_POST.output_fields.label|trim|tolower}}
 			{{:error message="Ce libellé de sortie est déjà présent"}}
 		{{/if}}
-		{{#foreach from=$elem key=label item=value}}
-			{{:assign var="out.%s"|args:$label value=$value}}
-		{{/foreach}}
-		{{:assign var="output_natures." from="out"}}
+		{{:assign var="output_nature.key" value=$key}}
+		{{:assign var="output_nature.label" value=$label}}
+		{{:assign var="output_nature.type" value=$type}}
+		{{:assign var="output_natures." from=output_nature}}
 	{{/foreach}}
 
 	{{* ajouter la nouvelle sortie *}}
diff --git a/config/supprimer_type_mouvement.html b/config/supprimer_type_mouvement.html
index 9132c1f..0f55947 100644
--- a/config/supprimer_type_mouvement.html
+++ b/config/supprimer_type_mouvement.html
@@ -15,25 +15,25 @@
 {{:include file="../_get_config.html" keep="config"}}
 
 {{#form on="delete"}}
-	{{#foreach from=$config.input_nature item=elem}}
+	{{#foreach from=$config.input_nature key=key}}
 		{{if $_GET.dir == 'input' && $label|trim|tolower != $_GET.mvt|trim|tolower ||
 			$_GET.dir == 'output'
 		}}
-			{{#foreach from=$elem key=label item=value}}
-				{{:assign var="in.%s"|args:$label value=$value}}
-			{{/foreach}}
-			{{:assign var="input_natures." from="in"}}
+		{{:assign var="input_nature.key" value=$key}}
+		{{:assign var="input_nature.label" value=$label}}
+		{{:assign var="input_nature.type" value=$type}}
+		{{:assign var="input_natures." from=input_nature}}
 		{{/if}}
 	{{/foreach}}
 
-	{{#foreach from=$config.output_nature item=elem}}
+	{{#foreach from=$config.output_nature key=key}}
 		{{if $_GET.dir == 'output' && $label|trim|tolower != $_GET.mvt|trim|tolower ||
 			$_GET.dir == 'input'
 		}}
-			{{#foreach from=$elem key=label item=value}}
-				{{:assign var="out.%s"|args:$label value=$value}}
-			{{/foreach}}
-			{{:assign var="output_natures." from="out"}}
+		{{:assign var="output_nature.key" value=$key}}
+		{{:assign var="output_nature.label" value=$label}}
+		{{:assign var="output_nature.type" value=$type}}
+		{{:assign var="output_natures." from=output_nature}}
 		{{/if}}
 	{{/foreach}}
 
@@ -44,7 +44,6 @@
 		output_nature=$output_natures
 	}}
 	{{:redirect to="./config.html?ok=1"}}
-
 {{/form}}
 
 {{:admin_header title="Gestion des matériels" current="module_equipment"}}
diff --git a/historique.html b/historique.html
index 5f7856a..157dd4f 100644
--- a/historique.html
+++ b/historique.html
@@ -52,11 +52,9 @@
 
 {{* récupérer la config des entrées/sorties *}}
 {{:include file="./_get_config.html" keep="config"}}
-{{:debug config.input_nature=$config.input_nature}}
 
 {{* déterminer les types de mouvements selon l'affection du matériel *}}
 {{#foreach from=$config.input_nature}}
-	{{:debug key=$key label=$label type=$type}}
 	{{if $_GET.prop}}
 		{{* matériel propriété de l'asso *}}
 		{{if $type != 'temporaire'}}
@@ -69,7 +67,6 @@
 		{{/if}}
 	{{/if}}
 {{/foreach}}
-{{:debug input_types=$input_types}}
 
 {{#foreach from=$config.output_nature}}
 	{{if $_GET.prop}}
@@ -91,8 +88,8 @@
 {{:assign nonproprio=0}}
 
 {{#load type="movement" where="$$.equipment = :key" :key=$equipment_key order="$$.date"}}
-	{{if $direction == 'input'}}
-		{{:assign var="type_mvt" from="config.input_nature.%s"|args:$input_nature}}
+ 	{{if $direction == 'input'}}
+		{{:assign var="type_mvt" from="config.input_nature.%s.type"|args:$operation}}
 		{{if $type_mvt == 'définitif'}}
 			{{:assign stock="%d+%d"|math:$stock:$amount}}
 		{{elseif $type_mvt == 'retour'}}
@@ -101,7 +98,7 @@
 			{{:assign nonproprio="%d+%d"|math:$nonproprio:$amount}}
 		{{/if}}
 	{{else}}
-		{{:assign var="type_mvt" from="config.output_nature.%s"|args:$output_nature}}
+		{{:assign var="type_mvt" from="config.output_nature.%s.type"|args:$operation}}
 		{{if $type_mvt == 'définitif'}}
 			{{:assign stock="%d-%d"|math:$stock:$amount}}
 		{{elseif $type_mvt == 'temporaire'}}
@@ -123,7 +120,7 @@
 		type="movement"
 		select="$$.date AS 'Date';
 			CASE $$.direction WHEN 'input' THEN 'Entrée' WHEN 'output' THEN 'Sortie' END AS 'Mouvement';
-			CASE $$.direction WHEN 'input' THEN $$.input_nature WHEN 'output' THEN $$.output_nature END AS 'Opération';
+			$$.operation AS 'Opération';
 			$$.amount AS 'Quantité';
 			"" as 'Stock';
 			"" as 'Sorti';
@@ -132,10 +129,11 @@
 		equipment=$equipment_key
 		order=1
 	}}
-		{{:assign var="type_mvt" from="config.%s_nature.%s"|args:$direction:$col3}}
+		{{:assign var="type_mvt" from="config.%s_nature.%s.type"|args:$direction:$operation}}
+		{{:assign var="op_label" from="config.%s_nature.%s.label"|args:$direction:$operation}}
 
-		{{if $direction === "input" && $input_nature|in:$input_types ||
-			 $direction === "output"&& $output_nature|in:$output_types
+		{{if $direction === "input" && $op_label|in:$input_types ||
+			 $direction === "output"&& $op_label|in:$output_types
 		}}
 			{{:assign var="stock" from="quantites.%s.stock"|args:$id}}
 			{{:assign var="exterieur" from="quantites.%s.exterieur"|args:$id}}
@@ -143,7 +141,7 @@
 			<tr>
 				<td>{{$date|date_short}}</td>
 				<td>{{$col2}}</td>
-				<td>{{$col3}}</td>
+				<td>{{$op_label}}</td>
 				<td class="num">{{$amount}}</td>
 				<td class="num">{{$stock}}</td>
 				<td class="num">{{$exterieur}}</td>
@@ -152,17 +150,17 @@
 				<td class="actions">
 					{{:linkbutton
 						label="Dupliquer"
-						href="mouvements/dupliquer_mouvement.html?key=%s&direction=%s&prop=%s"|args:$key:$direction:$_GET.prop
+						href="mouvements/dupliquer_mouvement.html?key=%s&prop=%s"|args:$key:$_GET.prop
 						shape="plus"
 						target="_dialog"}}
 					{{:linkbutton
 						label="Modifier"
-						href="mouvements/modifier_mouvement.html?key=%s&direction=%s"|args:$key:$direction
+						href="mouvements/modifier_mouvement.html?key=%s"|args:$key
 						shape="edit"
 						target="_dialog"}}
 					{{:linkbutton
 						label="Supprimer"
-						href="mouvements/supprimer_mouvement.html?key=%s&direction=%s&prop=%s"|args:$key:$direction:$_GET.prop
+						href="mouvements/supprimer_mouvement.html?key=%s&prop=%s"|args:$key:$_GET.prop
 						shape="delete"
 						target="_dialog"}}
 				</td>
@@ -175,7 +173,7 @@
 		type="movement"
 		select="$$.date AS 'Date';
 			CASE $$.direction WHEN 'input' THEN 'Entrée' WHEN 'output' THEN 'Sortie' END AS 'Mouvement';
-			CASE $$.direction WHEN 'input' THEN $$.input_nature WHEN 'output' THEN $$.output_nature END AS 'Opération';
+			$$.operation AS 'Opération';
 			$$.amount AS 'Quantité';
 			"" as 'Présent';
 			$$.comment AS 'Commentaire'"
@@ -183,32 +181,33 @@
 		order=1
 	}}
 		{{:assign var="type_mvt" from="config.%s_nature.%s"|args:$direction:$col3}}
+		{{:assign var="op_label" from="config.%s_nature.%s.label"|args:$direction:$operation}}
 
-		{{if $direction === "input" && $input_nature|in:$input_types ||
-			 $direction === "output"&& $output_nature|in:$output_types
+		{{if $direction === "input" && $op_label|in:$input_types ||
+			 $direction === "output"&& $op_label|in:$output_types
 		}}
 			{{:assign var="stock" from="quantites.%s.nonproprio"|args:$id}}
 			<tr>
 				<td>{{$date|date_short}}</td>
 				<td>{{$col2}}</td>
-				<td>{{$col3}}</td>
+				<td>{{$op_label}}</td>
 				<td class="num">{{$amount}}</td>
 				<td class="num">{{$stock}}</td>
 				<td>{{$comment}}</td>
 				<td class="actions">
 					{{:linkbutton
 						label="Dupliquer"
-						href="mouvements/dupliquer_mouvement.html?key=%s&direction=%s&prop=%s"|args:$key:$direction:$_GET.prop
+						href="mouvements/dupliquer_mouvement.html?key=%s&prop=%s"|args:$key:$_GET.prop
 						shape="plus"
 						target="_dialog"}}
 					{{:linkbutton
 						label="Modifier"
-						href="mouvements/modifier_mouvement.html?key=%s&direction=%s"|args:$key:$direction
+						href="mouvements/modifier_mouvement.html?key=%s"|args:$key
 						shape="edit"
 						target="_dialog"}}
 					{{:linkbutton
 						label="Supprimer"
-						href="mouvements/supprimer_mouvement.html?key=%s&direction=%s&prop=%s"|args:$key:$direction:$_GET.prop
+						href="mouvements/supprimer_mouvement.html?key=%s&prop=%s"|args:$key:$_GET.prop
 						shape="delete"
 						target="_dialog"}}
 				</td>
diff --git a/mouvements/ajouter_entree.html b/mouvements/ajouter_entree.html
index 5fc8116..b0716f6 100644
--- a/mouvements/ajouter_entree.html
+++ b/mouvements/ajouter_entree.html
@@ -9,9 +9,9 @@
 {{:include file="../_get_config.html" keep="config"}}
 
 {{* types d'entrées *}}
-{{#foreach from=$config.input_nature}} {{* key="label" item="type"*}}
+{{#foreach from=$config.input_nature key=key}}
 	{{if $type != 'retour'}}
-		{{:assign var="input_labels.%s"|args:$key value="%s"|args:$label}}
+		{{:assign var="input_labels.%s"|args:$key value=$label}}
 	{{/if}}
 {{/foreach}}
 
@@ -94,7 +94,7 @@
 		<fieldset class="entree">
 			<legend>Ajouter une entrée de matériel</legend>
 			<dl>
-			{{:input type="select" name="operation" label="Type" required=true options=$input_labels}}
+			{{:input type="select" name="operation" label="Type" required=true options=$input_labels|sort}}
 			{{:input type="date" name="date" label="Date" required=true default=$now|date_short}}
 			{{:input type="number" name="quantite" label="Quantité" min=1 required=true default=1}}
 			</dl>
diff --git a/mouvements/dupliquer_mouvement.html b/mouvements/dupliquer_mouvement.html
index 0d75690..dc767e6 100644
--- a/mouvements/dupliquer_mouvement.html
+++ b/mouvements/dupliquer_mouvement.html
@@ -4,28 +4,16 @@
 	Dupliquer un mouvement
 	paramètres :
 	- key : clé du mouvement à dupliquer
-	- direction du mouvement à dupliquer
 	- prop = 1 si matériel appartient à l'asso
 *}}
 
-{{if $_GET.direction == "input"}}
-	{{:assign msg_direction="entrée"}}
-{{else}}
-	{{:assign msg_direction="sortie"}}
-{{/if}}
-
 {{* récupérer les infos du mouvement à dupliquer *}}
 {{#load key=$_GET.key assign="mvt_new"}}
 {{else}}
-	{{:error message="Aucune %s avec la clé %s"|args:$msg_direction:$_GET.key}}
+	{{:error message="Aucun mouvement avec la clé %s"|args:$_GET.key}}
 {{/load}}
 
 {{* infos pour affichage *}}
-{{if $_GET.direction == "input"}}
-	{{:assign mvt_nature=$mvt_new.input_nature}}
-{{else}}
-	{{:assign mvt_nature=$mvt_new.output_nature}}
-{{/if}}
 {{:assign amount_init=$mvt_new.amount}}
 {{:assign date_init=$mvt_new.date|date_short}}
 {{:assign eqpmt_key=$mvt_new.equipment}}
@@ -40,28 +28,22 @@
 {{:include file="../_get_config.html" keep="config"}}
 
 {{* limiter les opérations possibles *}}
-{{if $_GET.direction == "input"}}
+{{if $mvt_new.direction == "input"}}
 	{{* types d'entrées *}}
-	{{#foreach from=$config.input_nature key="label" item="type"}}
+	{{#foreach from=$config.input_nature key=key}}
 		{{if $_GET.prop && $type != "temporaire" ||
 			 ! $_GET.prop && $type == "temporaire"
 		}}
-			{{:assign var="input_labels.%s"|args:$label value="%s"|args:$label}}
-		{{/if}}
-		{{if $label == $mvt_new.input_nature}}
-			{{:assign nature_defaut=$label}}
+			{{:assign var="input_labels.%s"|args:$key value=$label}}
 		{{/if}}
 	{{/foreach}}
 {{else}}
 	{{* types de sorties *}}
-	{{#foreach from=$config.output_nature key="label" item="type"}}
+	{{#foreach from=$config.output_nature key=key}}
 		{{if $_GET.prop && $type != "retour" ||
 			! $_GET.prop && $type == "retour"
 		}}
-			{{:assign var="output_labels.%s"|args:$label value="%s"|args:$label}}
-		{{/if}}
-		{{if $label == $mvt_new.output_nature}}
-			{{:assign nature_defaut=$label}}
+			{{:assign var="output_labels.%s"|args:$key value=$label}}
 		{{/if}}
 	{{/foreach}}
 {{/if}}
@@ -75,17 +57,17 @@
 	{{/if}}
 
 	{{* préparer le mouvement copié *}}
-	{{if $_GET.direction == "input"}}
-		{{:assign var="mvt_new.input_nature" value=$_POST.nature_operation}}
-		{{:assign var="type_mvt" from="config.input_nature.%s"|args:$mvt_new.input_nature}}
+	{{if $mvt_new.direction == "input"}}
+		{{:assign var="mvt_new.input_nature" value=$_POST.operation}}
+		{{:assign var="type_mvt" from="config.input_nature.%s.type"|args:$mvt_new.operation}}
 		{{if $type_mvt == "temporaire"}}
 			{{:assign prop=0}}
 		{{else}}
 			{{:assign prop=1}}
 		{{/if}}
 	{{else}}
-		{{:assign var="mvt_new.output_nature" value=$_POST.nature_operation}}
-		{{:assign var="type_mvt" from="config.output_nature.%s"|args:$mvt_new.output_nature}}
+		{{:assign var="mvt_new.output_nature" value=$_POST.operation}}
+		{{:assign var="type_mvt" from="config.output_nature.%s.type"|args:$mvt_new.operation}}
 		{{if $type_mvt == "retour"}}
 			{{:assign prop=0}}
 		{{else}}
@@ -113,8 +95,8 @@
 	}}
 		{{if! $insere}}
 			{{if
-				$_GET.direction == "input" && $date >= $mvt_new.date ||
-				$_GET.direction == "output" && $date > $mvt_new.date
+				$mvt_new.direction == "input" && $date >= $mvt_new.date ||
+				$mvt_new.direction == "output" && $date > $mvt_new.date
 				}}
 				{{:assign var="movements_new." from=mvt_new}}
 				{{:assign insere=true}}
@@ -136,7 +118,7 @@
 	{{if $erreur}}
 		<p class="block error">
 			Impossible d'enregistrer ce mouvement :
-			{{if $_GET.direction == "input"}}
+			{{if $mvt_new.direction == "input"}}
 				« {{$mvt_new.input_nature}}
 			{{else}}
 				« {{$mvt_new.output_nature}}
@@ -150,9 +132,8 @@
 			key=$mvt_key
 			validate_schema="movement.schema.json"
 			type="movement"
-			direction=$_GET.direction
-			input_nature=$mvt_new.input_nature
-			output_nature=$mvt_new.output_nature
+			direction=$mvt_new.direction
+			operation=$_POST.operation
 			amount=$mvt_new.amount|intval
 			equipment=$eqpmt_key
 			date=$mvt_new.date
@@ -171,17 +152,18 @@
 
 {{* récupérer les infos de la catégorie *}}
 {{#load key=$eqpmt.category assign="category"}}{{/load}}
+{{:assign var="op_label" from="config.%s_nature.%s.label"|args:$mvt_new.direction:$mvt_new.operation}}
 
 {{* formulaire de copie du mouvement *}}
 <form method="post" action="">
 	<fieldset>
-		<legend>Créer une copie de « {{$mvt_nature}} {{$eqpmt.designation}} (Catégorie : {{$category.name}}) »</legend>
-		{{if $_GET.direction == "input"}}
+		<legend>Créer une copie de « {{$op_label}} {{$eqpmt.designation}} (Catégorie : {{$category.name}}) »</legend>
+		{{if $mvt_new.direction == "input"}}
 			<dl>
-				{{:input type="select" name="nature_operation" label="Type" required=true options=$input_labels|sort default=$nature_defaut}}
+				{{:input type="select" name="operation" label="Type" required=true options=$input_labels|sort default=$mvt_new.operation}}
 		{{else}}
 			<dl>
-				{{:input type="select" name="nature_operation" label="Type" required=true options=$output_labels|sort default=$nature_defaut}}
+				{{:input type="select" name="operation" label="Type" required=true options=$output_labels|sort default=$mvt_new.operation}}
 		{{/if}}
 		{{:input type="date" name="date" label="Date" required=true default=$mvt_new.date}}
 		{{:input type="number" name="amount" label="Quantité" min=1 required=true default=$mvt_new.amount}}
diff --git a/mouvements/entrees/repertorie.html b/mouvements/entrees/repertorie.html
index 26e0b0c..b8e9002 100644
--- a/mouvements/entrees/repertorie.html
+++ b/mouvements/entrees/repertorie.html
@@ -15,9 +15,9 @@
 {{:include file="../../_get_config.html" keep="config"}}
 
 {{* types d'entrées *}}
-{{#foreach from=$config.input_nature key="label" item="type"}}
+{{#foreach from=$config.input_nature key=key}}
 	{{if $type != 'retour'}}
-		{{:assign var='input_labels.' value="%s"|args:$label}}
+		{{:assign var="input_labels.%s"|args:$key value=$label}}
 	{{/if}}
 {{/foreach}}
 
@@ -37,20 +37,18 @@
 
 	{{* Enregistrer le mouvement *}}
 	{{:assign mvt_key=""|uuid}}
-	{{:assign var="operation" from="input_labels.%d|args:$_POST.nature_operation}}
-
 	{{:save
 		key=$mvt_key
 		validate_schema="../movement.schema.json"
 		type="movement"
 		direction="input"
-		input_nature=$operation
+		operation=$_POST.operation
 		amount=$_POST.quantite|intval
 		equipment=$equipment.key
 		date=$_POST.date|parse_date
 		comment=$_POST.remarques|trim
 	}}
-	{{:assign var=type_entree from="config.input_nature.%s"|args:$operation}}
+	{{:assign var=type_entree from="config.input_nature.%s.type"|args:$_POST.operation}}
 	{{if $type_entree == "temporaire"}}
 		{{:assign prop=0}}
 	{{else}}
@@ -76,7 +74,7 @@
 	<fieldset class="entree">
 		<legend>Ajouter une entrée de matériel</legend>
 		<dl>
-			{{:input type="select" name="nature_operation" label="Type" required=true options=$input_labels|sort}}
+			{{:input type="select" name="operation" label="Type" required=true options=$input_labels|sort}}
 			{{:input type="date" name="date" label="Date" required=true default=$now|date_short}}
 			{{:input type="number" name="quantite" label="Quantité" required=true min=1 default=1}}
 			{{:input type="textarea" name="remarques" label="Remarques" cols="40" rows="3" required=false}}
diff --git a/mouvements/entrees/retour.html b/mouvements/entrees/retour.html
index 9691bf3..5015cd7 100644
--- a/mouvements/entrees/retour.html
+++ b/mouvements/entrees/retour.html
@@ -14,9 +14,9 @@
 {{:include file="../../_get_config.html" keep="config"}}
 
 {{* types d'entrées *}}
-{{#foreach from=$config.input_nature key="label" item="type"}}
+{{#foreach from=$config.input_nature key=key}}
 	{{if $type == 'retour'}}
-		{{:assign var='input_labels.' value="%s"|args:$label}}
+		{{:assign var="input_labels.%s"|args:$key value=$label}}
 	{{/if}}
 {{/foreach}}
 
@@ -43,14 +43,12 @@
 
 	{{* Enregistrer le mouvement *}}
 	{{:assign mvt_key=""|uuid}}
-	{{:assign var="operation" from="input_labels.%d|args:$_POST.type_operation}}
-
 	{{:save
 		key=$mvt_key
 		validate_schema="../movement.schema.json"
 		type="movement"
 		direction="input"
-		input_nature=$operation
+		operation=$_POST.operation
 		amount=$_POST.quantite|intval
 		equipment=$equipment.key
 		date=$_POST.date|parse_date
@@ -91,7 +89,7 @@
 		<fieldset class="entree">
 			<legend>Ajouter un retour de matériel</legend>
 			<dl>
-				{{:input type="select" name="type_operation" label="Type" required=true options=$input_labels|sort}}
+				{{:input type="select" name="operation" label="Type" required=true options=$input_labels|sort}}
 				{{:input type="date" name="date" label="Date" required=true default=$now|date_short}}
 				{{:input type="number" name="quantite" label="Quantité" min=1 required=true default=$sorti max=$sorti}}
 				{{:input type="textarea" name="remarques" label="Remarques" cols="40", rows="3" required=false}}
diff --git a/mouvements/modifier_mouvement.html b/mouvements/modifier_mouvement.html
index be6187a..0e140c4 100644
--- a/mouvements/modifier_mouvement.html
+++ b/mouvements/modifier_mouvement.html
@@ -4,27 +4,20 @@
 	Modifier un mouvement
 	paramètres :
 	- key		: clé du mouvement à modifier
-	- direction : du mouvement à modifier
 *}}
 
-{{if $_GET.direction == "input"}}
-	{{:assign msg_direction="entrée"}}
-{{else}}
-	{{:assign msg_direction="sortie"}}
-{{/if}}
-
 {{* récupérer les infos du mouvement à modifier *}}
 {{#load key=$_GET.key assign="mvt_new"}}
 {{else}}
-	{{:error message="Aucune %s avec la clé %s"|args:$msg_direction:$_GET.key}}
+	{{:error message="Aucun mouvement avec la clé %s"|args:$_GET.key}}
 {{/load}}
 
+{{* récupérer la config des entrées/sorties *}}
+{{:include file="../_get_config.html" keep="config"}}
+
 {{* infos pour affichage *}}
-{{if $_GET.direction == "input"}}
-	{{:assign mvt_nature=$mvt_new.input_nature}}
-{{else}}
-	{{:assign mvt_nature=$mvt_new.output_nature}}
-{{/if}}
+{{:assign var="op_label" from="config.%s_nature.%s.label"|args:$mvt_new.direction:$mvt_new.operation}}
+{{:debug get=$_GET mvt_new=$mvt_new op_label=$op_label}}
 {{:assign amount_init=$mvt_new.amount}}
 {{:assign date_init=$mvt_new.date|date_short}}
 {{:assign eqpmt_key=$mvt_new.equipment}}
@@ -35,24 +28,15 @@
 	{{:error message="Aucun matériel avec la clé « %s »"|args:$eqpmt_key}}
 {{/load}}
 
-{{* récupérer la config des entrées/sorties *}}
-{{:include file="../_get_config.html" keep="config"}}
-
-{{if $_GET.direction == "input"}}
+{{if $mvt_new.direction == "input"}}
 	{{* types d'entrées *}}
-	{{#foreach from=$config.input_nature key="label" item="type"}}
-		{{:assign var="input_labels.%s"|args:$label value="%s"|args:$label}}
-		{{if $label == $mvt_new.input_nature}}
-			{{:assign nature_defaut=$label}}
-		{{/if}}
+	{{#foreach from=$config.input_nature key=key}}
+		{{:assign var="input_labels.%s"|args:$key value=$label}}
 	{{/foreach}}
 {{else}}
 	{{* types de sorties *}}
-	{{#foreach from=$config.output_nature key="label" item="type"}}
-		{{:assign var="output_labels.%s"|args:$label value="%s"|args:$label}}
-		{{if $label == $mvt_new.output_nature}}
-			{{:assign nature_defaut=$label}}
-		{{/if}}
+	{{#foreach from=$config.output_nature key=key}}
+		{{:assign var="output_labels.%s"|args:$key value=$label}}
 	{{/foreach}}
 {{/if}}
 
@@ -65,17 +49,17 @@
 	{{/if}}
 
 	{{* préparer le mouvement modifié *}}
-	{{if $_GET.direction == "input"}}
-		{{:assign var="mvt_new.input_nature" value=$_POST.nature_operation}}
-		{{:assign var="type_mvt" from="config.input_nature.%s"|args:$mvt_new.input_nature}}
+	{{if $mvt_new.direction == "input"}}
+		{{:assign var="mvt_new.input_nature" value=$_POST.operation}}
+		{{:assign var="type_mvt" from="config.input_nature.%s.type"|args:$mvt_new.operation}}
 		{{if $type_mvt == "temporaire"}}
 			{{:assign prop=0}}
 		{{else}}
 			{{:assign prop=1}}
 		{{/if}}
 	{{else}}
-		{{:assign var="mvt_new.output_nature" value=$_POST.nature_operation}}
-		{{:assign var="type_mvt" from="config.output_nature.%s"|args:$mvt_new.output_nature}}
+		{{:assign var="mvt_new.output_nature" value=$_POST.operation}}
+		{{:assign var="type_mvt" from="config.output_nature.%s.type"|args:$mvt_new.operation}}
 		{{if $type_mvt == "retour"}}
 			{{:assign prop=0}}
 		{{else}}
@@ -105,8 +89,8 @@
 		{{if $key != $_GET.key}}
 			{{if! $insere}}
 				{{if
-					$_GET.direction == "input" && $date >= $mvt_new.date ||
-					$_GET.direction == "output" && $date > $mvt_new.date
+					$mvt_new.direction == "input" && $date >= $mvt_new.date ||
+					$mvt_new.direction == "output" && $date > $mvt_new.date
 				}}
 					{{:assign var="movements_new." from=mvt_new}}
 					{{:assign insere=true}}
@@ -127,14 +111,11 @@
 	}}
 
 	{{if $erreur}}
+		{{:assign var="new_op_label" from="config.%s_nature.%s.label"|args:$mvt_new.direction:$mvt_new.operation}}
 		<p class="block error">
 			Modification demandée impossible :
-			« {{$mvt_nature}} de {{$eqpmt.designation}} (qté : {{$amount_init}}) en date du {{$date_init}} » vers
-			{{if $_GET.direction == "input"}}
-				« {{$mvt_new.input_nature}}
-			{{else}}
-				« {{$mvt_new.output_nature}}
-			{{/if}}
+			« {{$op_label}} de {{$eqpmt.designation}} (qté : {{$amount_init}}) en date du {{$date_init}} » vers
+			« {{$new_op_label}}
 			de {{$eqpmt.designation}} (qté : {{$mvt_new.amount}}) à la date du {{$mvt_new.date|date_short}} »
 		</p>
 	{{else}}
@@ -143,9 +124,8 @@
 			key=$_GET.key
 			validate_schema="movement.schema.json"
 			type="movement"
-			direction=$_GET.direction
-			input_nature=$mvt_new.input_nature
-			output_nature=$mvt_new.output_nature
+			direction=$mvt_new.direction
+			operation=$_POST.operation
 			amount=$mvt_new.amount|intval
 			equipment=$eqpmt_key
 			date=$mvt_new.date
@@ -168,13 +148,13 @@
 {{* formulaire de modification du mouvement *}}
 <form method="post" action="">
 	<fieldset>
-		<legend>Modifier « {{$mvt_nature}} {{$eqpmt.designation}} (Catégorie : {{$category.name}}) »</legend>
-		{{if $_GET.direction == "input"}}
+		<legend>Modifier « {{$op_label}} {{$eqpmt.designation}} (Catégorie : {{$category.name}}) »</legend>
+		{{if $mvt_new.direction == "input"}}
 			<dl>
-				{{:input type="select" name="nature_operation" label="Type" required=true options=$input_labels|sort default=$nature_defaut}}
+				{{:input type="select" name="operation" label="Type" required=true options=$input_labels|sort default=$mvt_new.operation}}
 		{{else}}
 			<dl>
-				{{:input type="select" name="nature_operation" label="Type" required=true options=$output_labels|sort default=$nature_defaut}}
+				{{:input type="select" name="operation" label="Type" required=true options=$output_labels|sort default=$mvt_new.operation}}
 		{{/if}}
 		{{:input type="date" name="date" label="Date" required=true default=$mvt_new.date}}
 		{{:input type="number" name="amount" label="Quantité" min=1 required=true default=$mvt_new.amount}}
diff --git a/mouvements/sorties/emprunte.html b/mouvements/sorties/emprunte.html
index d5b7a38..1fc135e 100644
--- a/mouvements/sorties/emprunte.html
+++ b/mouvements/sorties/emprunte.html
@@ -14,9 +14,9 @@
 {{:include file="../../_get_config.html" keep="config"}}
 
 {{* types de sorties *}}
-{{#foreach from=$config.output_nature key="label" item="type"}}
+{{#foreach from=$config.output_nature key=key}}
 	{{if $type == 'retour'}}
-		{{:assign var='output_labels.' value="%s"|args:$label}}
+		{{:assign var="output_labels.%s"|args:$key value=$label}}
 	{{/if}}
 {{/foreach}}
 
@@ -47,8 +47,7 @@
 		{{/if}}
 
 		{{* traiter le mouvement courant *}}
-		{{:assign var="mvt_nature" from="mvt.%s_nature"|args:$mvt.direction}}
-		{{:assign var="type_mvt" from="config.%s_nature.%s"|args:$mvt.direction:$mvt_nature}}
+		{{:assign var="type_mvt" from="config.%s_nature.%s.type"|args:$mvt.direction:$mvt.operation}}
 
 		{{if $mvt.direction === 'input'}}
 			{{if $type_mvt == 'définitif'}}
@@ -86,13 +85,12 @@
 
 	{{* Enregistrer le mouvement *}}
 	{{:assign mvt_key=""|uuid}}
-	{{:assign var="operation" from="output_labels.%d|args:$_POST.type_operation}}
 	{{:save
 			key=$mvt_key
 			validate_schema="../movement.schema.json"
 			type="movement"
 			direction="output"
-			output_nature=$operation
+			operation=$_POST.operation
 			amount=$_POST.quantite|intval
 			equipment=$equipment.key
 			date=$_POST.date|parse_date
@@ -130,7 +128,7 @@
 			<fieldset class="sortie">
 				<legend>Ajouter une sortie d'un matériel présent temporairement</legend>
 				<dl>
-				{{:input type="select" name="type_operation" label="Type" required=true options=$output_labels|sort}}
+				{{:input type="select" name="operation" label="Type" required=true options=$output_labels|sort}}
 				{{:input type="date" name="date" label="Date de sortie" required=true default=$now|date_short}}
 				{{:input type="number" name="quantite" label="Quantité" required=true default=$present min=1 max=$present}}
 				{{:input type="textarea" name="remarques" label="Remarques" cols="40" rows="3" required=false}}
diff --git a/mouvements/sorties/stock_disponible.html b/mouvements/sorties/stock_disponible.html
index ddfa246..c76a85a 100644
--- a/mouvements/sorties/stock_disponible.html
+++ b/mouvements/sorties/stock_disponible.html
@@ -14,9 +14,9 @@
 {{:include file="../../_get_config.html" keep="config"}}
 
 {{* types de sorties *}}
-{{#foreach from=$config.output_nature key="label" item="type"}}
+{{#foreach from=$config.output_nature key=key}}
 	{{if $type != 'retour'}}
-		{{:assign var='output_labels.' value="%s"|args:$label}}
+		{{:assign var="output_labels.%s"|args:$key value=$label}}
 	{{/if}}
 {{/foreach}}
 
@@ -33,13 +33,11 @@
 
 	{{* lister tous les mouvements du matériel *}}
 	{{#load type="movement" where="$$.equipment = '%s'"|args:$_GET.key assign="mvt" order="$$.date ASC"}}
-
 		{{* traiter le nouveau mouvement *}}
 		{{if ! $insere && $mvt.date > $_POST.date|parse_date}}
 			{{:assign insere=true}}
 			{{:assign dispo_old="%d-%d"|math:$stock:$exterieur}}
-			{{:assign var="operation" from="output_labels.%s|args:$_POST.type_operation}}
-			{{:assign var="type_mvt" from="config.output_nature.%s"|args:$operation}}
+			{{:assign var="type_mvt" from="config.output_nature.%s.type"|args:$_POST.operation}}
 
 			{{if $type_mvt == 'définitif'}}
 				{{:assign stock="%d-%d"|math:$stock:$_POST.quantite}}
@@ -55,8 +53,7 @@
 		{{/if}}
 
 		{{* traiter le mouvement courant *}}
-		{{:assign var="mvt_nature" from="mvt.%s_nature"|args:$mvt.direction}}
-		{{:assign var="type_mvt" from="config.%s_nature.%s"|args:$mvt.direction:$mvt_nature}}
+		{{:assign var="type_mvt" from="config.%s_nature.%s.type"|args:$mvt.direction:$mvt.operation}}
 
 		{{if $mvt.direction === 'input'}}
 			{{if $type_mvt == 'définitif'}}
@@ -85,8 +82,7 @@
 	{{/load}}
 	{{if ! $insere}}
 		{{:assign dispo_old="%d-%d"|math:$stock:$exterieur}}
-		{{:assign var="operation" from="output_labels.%s|args:$_POST.type_operation}}
-		{{:assign var="type_mvt" from="config.output_nature.%s"|args:$operation}}
+		{{:assign var="type_mvt" from="config.output_nature.%s.type"|args:$_POST.operation}}
 
 		{{if $type_mvt == 'définitif'}}
 			{{:assign stock="%d-%d"|math:$stock:$_POST.quantite}}
@@ -103,13 +99,12 @@
 
 	{{* Enregistrer le mouvement *}}
 	{{:assign mvt_key=""|uuid}}
-	{{:assign var="operation" from="output_labels.%d|args:$_POST.type_operation}}
 	{{:save
 		key=$mvt_key
 		validate_schema="../movement.schema.json"
 		type="movement"
 		direction="output"
-		output_nature=$operation
+		operation=$_POST.operation
 		amount=$_POST.quantite|intval
 		equipment=$equipment.key
 		date=$_POST.date|parse_date
@@ -150,7 +145,7 @@
 		<fieldset class="sortie">
 			<legend>Ajouter une sortie</legend>
 			<dl>
-				{{:input type="select" name="type_operation" label="Type" required=true options=$output_labels|sort}}
+				{{:input type="select" name="operation" label="Type" required=true options=$output_labels|sort}}
 				{{:input type="date" name="date" label="Date de sortie" required=true default=$now|date_short}}
 				{{:input type="number" name="quantite" label="Quantité" required=true default=$dispo min=1 max=$dispo}}
 				{{:input type="textarea" name="remarques" label="Remarques" cols="40" rows="3" required=false}}
diff --git a/mouvements/supprimer_mouvement.html b/mouvements/supprimer_mouvement.html
index fe30d9f..8652393 100644
--- a/mouvements/supprimer_mouvement.html
+++ b/mouvements/supprimer_mouvement.html
@@ -40,8 +40,7 @@
 			order="$$.date"}}
 
 			{{* déterminer le type de mouvement *}}
-			{{:assign var="mvt_nature" from="mvt.%s_nature"|args:$mvt.direction}}
-			{{:assign var="type_mvt" from="config.%s_nature.%s"|args:$mvt.direction:$mvt_nature}}
+			{{:assign var="type_mvt" from="config.%s_nature.%s.type"|args:$mvt.direction:$mvt.operation}}
 
 			{{if $key != $_GET.key}}
 				{{* ce n'est pas le mouvement à supprimer : cumuler les entrées/sorties *}}
@@ -70,9 +69,9 @@
 	{{else}}
 		{{* sortie *}}
 		{{:assign temporaire=false}}
-		{{:assign var="output_nature" from="config.output_nature.%s"|args:$mvt_suppr.output_nature}}
+		{{:assign var="type_operation" from="config.output_nature.%s.type"|args:$mvt_suppr.operation}}
 
-		{{if $output_nature == 'temporaire'}}
+		{{if $type_operation == 'temporaire'}}
 			{{:assign exterieur=0}}
 			{{#load
 				type="movement"
@@ -81,8 +80,7 @@
 				order="$$.date"}}
 
 				{{* déterminer le type de mouvement *}}
-				{{:assign var="mvt_nature" from="mvt.%s_nature"|args:$mvt.direction}}
-				{{:assign var="type_mvt" from="config.%s_nature.%s"|args:$mvt.direction:$mvt_nature}}
+				{{:assign var="type_mvt" from="config.%s_nature.%s.type"|args:$mvt.direction:$mvt.operation}}
 
 				{{if $key != $_GET.key}}
 					{{* ce n'est pas le mouvement à supprimer : cumuler les entrées/sorties *}}
diff --git a/mouvements/valider_modification.html b/mouvements/valider_modification.html
index 950dad2..753fbd8 100644
--- a/mouvements/valider_modification.html
+++ b/mouvements/valider_modification.html
@@ -15,8 +15,7 @@
 
 {{#foreach from=$movements item="mvt"}}
 	{{* déterminer le type de mouvement *}}
-	{{:assign var="mvt_nature" from="mvt.%s_nature"|args:$mvt.direction}}
-	{{:assign var="type_mvt" from="config.%s_nature.%s"|args:$mvt.direction:$mvt_nature}}
+	{{:assign var="type_mvt" from="config.%s_nature.%s.type"|args:$mvt.direction:$mvt.operation}}
 
 	{{if $mvt.direction == 'input'}}
 		{{if $type_mvt == 'définitif'}}