diff --git a/module/actor-sheet.js b/module/actor-sheet.js
index dd0ccfab..88ed655f 100644
--- a/module/actor-sheet.js
+++ b/module/actor-sheet.js
@@ -20,7 +20,8 @@ export class RdDActorSheet extends ActorSheet {
       //height: 720,
       tabs: [{navSelector: ".sheet-tabs", contentSelector: ".sheet-body", initial: "carac"}],
       dragDrop: [{dragSelector: ".item-list .item", dropSelector: null}],
-      editCaracComp: false
+      editCaracComp: false,
+      cacherCompetencesNiveauBase: false,
     });
   }
 
@@ -28,6 +29,14 @@ export class RdDActorSheet extends ActorSheet {
   getData() {
     let data = super.getData();
 
+    // Gestion du lock/unlock des zones éditables (carac+compétences)
+    data.data.editCaracComp  = this.options.editCaracComp;
+    data.data.lockUnlockText = (this.options.editCaracComp) ? "Bloquer" : "Débloquer";
+    // Gestion de l'affichage total/partiel des compétences
+    data.data.cacherCompetencesNiveauBase  = this.options.cacherCompetencesNiveauBase;
+    data.data.showHideCompetenceText = (this.options.cacherCompetencesNiveauBase) ? "Cacher Comp." : "Montrer Comp." ;
+    
+    let compCategorieNiveau = RdDUtility.getLevelCategory(); // recup catégorie
     data.itemsByType = RdDUtility.buildItemsClassification(data.items);
     // Competence per category
     data.competenceByCategory = {};
@@ -41,7 +50,11 @@ export class RdDActorSheet extends ActorSheet {
           data.competenceByCategory[item.data.categorie] = list;
         }
         if (!RdDUtility.isTronc( item.name ) ) // Ignorer les compétences 'troncs' à ce stade
-          competenceXPTotal += RdDUtility.computeCompetenceXPCost(item)
+          competenceXPTotal += RdDUtility.computeCompetenceXPCost(item);
+        item.data.afficherCompetence = true;
+        if ( data.data.cacherCompetencesNiveauBase && (Number(item.data.niveau) == Number(compCategorieNiveau[item.data.categorie]) ) ) {
+          item.data.afficherCompetence = false;
+        }
         list.push(item);
       }
     }
@@ -102,11 +115,7 @@ export class RdDActorSheet extends ActorSheet {
     data.data.isGM = game.user.isGM;
     data.ajustementsConditions = CONFIG.RDD.ajustementsConditions;
     data.difficultesLibres = CONFIG.RDD.difficultesLibres;
-    
-    // Gestion du lock/unlock des zones éditables (carac+compétences)
-    data.data.editCaracComp  = this.options.editCaracComp;
-    data.data.lockUnlockText = (this.options.editCaracComp) ? "Bloquer" : "Débloquer";
-
+        
     // low is normal, this the base used to compute the grid.
     data.data.fatigue = {
        malus: RdDUtility.calculMalusFatigue(data.data.sante.fatigue.value, data.data.sante.endurance.max),
@@ -351,11 +360,15 @@ export class RdDActorSheet extends ActorSheet {
     }
 
     // Gestion du bouton lock/unlock
-    html.find('.lock-unlock-sheet a').click((event) => {
+    html.find('.lock-unlock-sheet').click((event) => {
       this.options.editCaracComp = !this.options.editCaracComp;
       this.render(true);
     });
-            
+    html.find('.show-hide-competences').click((event) => {
+      this.options.cacherCompetencesNiveauBase = !this.options.cacherCompetencesNiveauBase;
+      this.render(true);
+    });
+    
     // On pts de reve change
     html.find('.pointsreve-value').change((event) => {
       let reveValue = event.currentTarget.value;
diff --git a/templates/actor-sheet.html b/templates/actor-sheet.html
index c0b12d6d..7ed312aa 100644
--- a/templates/actor-sheet.html
+++ b/templates/actor-sheet.html
@@ -52,8 +52,9 @@
                 <a id="ptreve-actuel-plus">+</a>
               </label>
             </li>
-            <li class="lock-unlock-sheet">
-              <label><a>{{data.lockUnlockText}}</a></label>
+            <li>
+              <label><a class="lock-unlock-sheet">{{data.lockUnlockText}}</a></label>
+              <label><a class="show-hide-competences">{{data.showHideCompetenceText}}</a></label>
             </li>
           </ul>
           <div class="flex-group-center  flex-actions-bar">
@@ -168,6 +169,7 @@
               </header>
               <ul class="item-list alterne-list">
                 {{#each data.competenceByCategory.generale as |comp key|}}
+                  {{#if data.afficherCompetence}}
                   <li class="item flexrow list-item" data-item-id="{{comp._id}}">
                       <img class="sheet-competence-img" src="{{comp.img}}"/>
                       <span class="competence-label" name="data.competenceByCategory.generale[{{key}}].name"><a>{{comp.name}}</a></span>
@@ -178,6 +180,7 @@
                           <a class="item-control item-delete" title="Delete Item"><i class="fas fa-trash"></i></a>
                       </div>
                   </li>
+                  {{/if}}
                 {{/each}}
               </ul>
 
@@ -186,6 +189,7 @@
               </header>
               <ul class="item-list alterne-list">
                 {{#each data.competenceByCategory.particuliere as |comp key|}}
+                  {{#if data.afficherCompetence}}
                   <li class="item flexrow list-item" data-item-id="{{comp._id}}">
                       <img class="sheet-competence-img" src="{{comp.img}}"/>
                       <span class="competence-label" name="data.competenceByCategory.particuliere[{{key}}].name"><a>{{comp.name}}</a></span>
@@ -196,6 +200,7 @@
                           <a class="item-control item-delete" title="Delete Item"><i class="fas fa-trash"></i></a>
                       </div>
                   </li>
+                  {{/if}}
                 {{/each}}
               </ul>
             <header class="competence-header flexrow">
@@ -203,6 +208,7 @@
             </header>
             <ul class="item-list alterne-list">
               {{#each data.competenceByCategory.specialisee as |comp key|}}
+                {{#if data.afficherCompetence}}
                 <li class="item flexrow list-item" data-item-id="{{comp._id}}">
                     <img class="sheet-competence-img" src="{{comp.img}}"/>
                     <span class="competence-label" name="data.competenceByCategory.specialisee[{{key}}].name"><a>{{comp.name}}</a></span>
@@ -213,7 +219,8 @@
                         <a class="item-control item-delete" title="Delete Item"><i class="fas fa-trash"></i></a>
                     </div>
                 </li>
-              {{/each}}
+                {{/if}}
+                {{/each}}
             </ul>
           </div>
             
@@ -223,6 +230,7 @@
               </header>
               <ul class="item-list alterne-list">
                 {{#each data.competenceByCategory.melee as |comp key|}}
+                  {{#if data.afficherCompetence}}
                   <li class="item flexrow list-item" data-item-id="{{comp._id}}">
                       <img class="sheet-competence-img" src="{{comp.img}}"/>
                       <span class="competence-label" name="data.competenceByCategory.melee[{{key}}].name"><a>{{comp.name}}</a></span>
@@ -233,7 +241,8 @@
                           <a class="item-control item-delete" title="Delete Item"><i class="fas fa-trash"></i></a>
                       </div>
                   </li>
-                {{/each}}
+                  {{/if}}
+              {{/each}}
               </ul>
 
               <header class="competence-header flexrow">
@@ -241,6 +250,7 @@
               </header>
               <ul class="item-list alterne-list">
                 {{#each data.competenceByCategory.tir as |comp key|}}
+                  {{#if data.afficherCompetence}}
                   <li class="item flexrow list-item" data-item-id="{{comp._id}}">
                       <img class="sheet-competence-img" src="{{comp.img}}"/>
                       <span class="competence-label" name="data.competenceByCategory.tir[{{key}}].name"><a>{{comp.name}}</a></span>
@@ -251,6 +261,7 @@
                           <a class="item-control item-delete" title="Delete Item"><i class="fas fa-trash"></i></a>
                       </div>
                   </li>
+                  {{/if}}
                 {{/each}}
               </ul>
 
@@ -259,6 +270,7 @@
               </header>
               <ul class="item-list alterne-list">
               {{#each data.competenceByCategory.lancer as |comp key|}}
+                  {{#if data.afficherCompetence}}
                   <li class="item flexrow list-item" data-item-id="{{comp._id}}">
                       <img class="sheet-competence-img" src="{{comp.img}}"/>
                       <span class="competence-label" name="data.competenceByCategory.lancer[{{key}}].name"><a>{{comp.name}}</a></span>
@@ -269,6 +281,7 @@
                           <a class="item-control item-delete" title="Delete Item"><i class="fas fa-trash"></i></a>
                       </div>
                   </li>
+                  {{/if}}
                 {{/each}}
               </ul>
 
@@ -277,6 +290,7 @@
               </header>
               <ul class="item-list alterne-list">
                 {{#each data.competenceByCategory.connaissance as |comp key|}}
+                  {{#if data.afficherCompetence}}
                   <li class="item flexrow list-item" data-item-id="{{comp._id}}">
                       <img class="sheet-competence-img" src="{{comp.img}}"/>
                       <span class="competence-label" name="data.competenceByCategory.connaissance[{{key}}].name"><a>{{comp.name}}</a></span>
@@ -287,6 +301,7 @@
                           <a class="item-control item-delete" title="Delete Item"><i class="fas fa-trash"></i></a>
                       </div>
                   </li>
+                  {{/if}}
                 {{/each}}
               </ul>
 
@@ -295,16 +310,18 @@
               </header>
               <ul class="item-list alterne-list">
               {{#each data.competenceByCategory.draconic as |comp key|}}
-                  <li class="item flexrow list-item" data-item-id="{{comp._id}}">
-                      <img class="sheet-competence-img" src="{{comp.img}}"/>
-                      <span class="competence-label" name="data.competenceByCategory.draconic[{{key}}].name"><a>{{comp.name}}</a></span>
-                      <input class="competence-value" type="text" name="data.competenceByCategory.draconic[{{key}}].data.niveau" compname="{{comp.name}}" value="{{numberFormat comp.data.niveau decimals=0 sign=true}}" data-dtype="number" {{#unless @root.data.editCaracComp}}disabled{{/unless}}/>
-                      <input class="competence-xp" type="text" name="data.competenceByCategory.draconic[{{key}}].data.xp" compname="{{comp.name}}" value="{{comp.data.xp}}" data-dtype="number" {{#unless @root.data.editCaracComp}}disabled{{/unless}}/>
-                      <div class="item-controls">
-                          <a class="item-control item-edit" title="Edit Item"><i class="fas fa-edit"></i></a>
-                          <a class="item-control item-delete" title="Delete Item"><i class="fas fa-trash"></i></a>
-                      </div>                    
-                  </li>
+                {{#if data.afficherCompetence}}
+                <li class="item flexrow list-item" data-item-id="{{comp._id}}">
+                  <img class="sheet-competence-img" src="{{comp.img}}"/>
+                  <span class="competence-label" name="data.competenceByCategory.draconic[{{key}}].name"><a>{{comp.name}}</a></span>
+                  <input class="competence-value" type="text" name="data.competenceByCategory.draconic[{{key}}].data.niveau" compname="{{comp.name}}" value="{{numberFormat comp.data.niveau decimals=0 sign=true}}" data-dtype="number" {{#unless @root.data.editCaracComp}}disabled{{/unless}}/>
+                  <input class="competence-xp" type="text" name="data.competenceByCategory.draconic[{{key}}].data.xp" compname="{{comp.name}}" value="{{comp.data.xp}}" data-dtype="number" {{#unless @root.data.editCaracComp}}disabled{{/unless}}/>
+                  <div class="item-controls">
+                    <a class="item-control item-edit" title="Edit Item"><i class="fas fa-edit"></i></a>
+                    <a class="item-control item-delete" title="Delete Item"><i class="fas fa-trash"></i></a>
+                  </div>                    
+                </li>
+                {{/if}}
               {{/each}}
               </ul>
               <div>