diff --git a/frontend/app/components/PieceModelStructureEditor.vue b/frontend/app/components/PieceModelStructureEditor.vue
index c26a7fc..4baf26a 100644
--- a/frontend/app/components/PieceModelStructureEditor.vue
+++ b/frontend/app/components/PieceModelStructureEditor.vue
@@ -124,6 +124,11 @@
                 Obligatoire
               </div>
 
+              <div class="flex items-center gap-2 text-xs">
+                <input v-model="field.machineContextOnly" type="checkbox" class="checkbox checkbox-xs">
+                Contexte machine uniquement
+              </div>
+
               <textarea
                 v-if="field.type === 'select'"
                 v-model="field.optionsText"
diff --git a/frontend/app/components/StructureNodeEditor.vue b/frontend/app/components/StructureNodeEditor.vue
index 3612258..aa9d914 100644
--- a/frontend/app/components/StructureNodeEditor.vue
+++ b/frontend/app/components/StructureNodeEditor.vue
@@ -121,6 +121,10 @@
                     <input v-model="field.required" type="checkbox" class="checkbox checkbox-xs" />
                     Obligatoire
                   </div>
+                  <div class="flex items-center gap-2 text-xs">
+                    <input v-model="field.machineContextOnly" type="checkbox" class="checkbox checkbox-xs">
+                    Contexte machine uniquement
+                  </div>
                   <textarea
                     v-if="field.type === 'select'"
                     v-model="field.optionsText"
diff --git a/frontend/app/composables/usePieceStructureEditorLogic.ts b/frontend/app/composables/usePieceStructureEditorLogic.ts
index 0734bc9..3cda462 100644
--- a/frontend/app/composables/usePieceStructureEditorLogic.ts
+++ b/frontend/app/composables/usePieceStructureEditorLogic.ts
@@ -88,6 +88,7 @@ const toEditorField = (
     ...(typeof input?.id === 'string' && input.id ? { id: input.id } : {}),
     ...(typeof input?.customFieldId === 'string' && input.customFieldId ? { customFieldId: input.customFieldId } : {}),
     orderIndex: typeof input?.orderIndex === 'number' ? input.orderIndex : index,
+    machineContextOnly: Boolean(input?.machineContextOnly),
   }
 }
 
@@ -162,6 +163,7 @@ const buildPayload = (
         type,
         required,
         orderIndex: index,
+        machineContextOnly: Boolean(field.machineContextOnly),
       }
 
       if (field.id) {
@@ -286,6 +288,7 @@ export function usePieceStructureEditorLogic(deps: Deps) {
     type: 'text',
     required: false,
     optionsText: '',
+    machineContextOnly: false,
     orderIndex,
   })
 
diff --git a/frontend/app/composables/useStructureNodeCrud.ts b/frontend/app/composables/useStructureNodeCrud.ts
index ddf16d6..794e3c7 100644
--- a/frontend/app/composables/useStructureNodeCrud.ts
+++ b/frontend/app/composables/useStructureNodeCrud.ts
@@ -56,6 +56,7 @@ export function useStructureNodeCrud(props: StructureNodeCrudDeps) {
       required: false,
       optionsText: '',
       options: [],
+      machineContextOnly: false,
       orderIndex: nextIndex,
     })
     reindexCustomFields()