diff --git a/src/Bundle/ChillActivityBundle/Resources/public/vuejs/Activity/App.vue b/src/Bundle/ChillActivityBundle/Resources/public/vuejs/Activity/App.vue
index b848a1428..fd1c093d7 100644
--- a/src/Bundle/ChillActivityBundle/Resources/public/vuejs/Activity/App.vue
+++ b/src/Bundle/ChillActivityBundle/Resources/public/vuejs/Activity/App.vue
@@ -143,9 +143,4 @@ div.flex-bloc {
       }
    }
 }
-select#chill_activitybundle_activity_persons,
-select#chill_activitybundle_activity_thirdParties,
-select#chill_activitybundle_activity_users {
-   display: none;
-}
 </style>
diff --git a/src/Bundle/ChillActivityBundle/Resources/public/vuejs/Activity/store.js b/src/Bundle/ChillActivityBundle/Resources/public/vuejs/Activity/store.js
index cfbc1a812..4f30cf516 100644
--- a/src/Bundle/ChillActivityBundle/Resources/public/vuejs/Activity/store.js
+++ b/src/Bundle/ChillActivityBundle/Resources/public/vuejs/Activity/store.js
@@ -4,6 +4,20 @@ import { createStore } from 'vuex';
 const debug = process.env.NODE_ENV !== 'production';
 //console.log('window.activity', window.activity);
 
+const addIdToValue = (string, id) => {
+   let array = string ? string.split(',') : [];
+   array.push(id.toString());
+   let str = array.join();
+   return str;
+};
+
+const removeIdFromValue = (string, id) => {
+   let array = string.split(',');
+   array = array.filter(el => el !== id.toString());
+   let str = array.join();
+   return str;
+};
+
 const store = createStore({
    strict: debug,
    state: {
@@ -27,7 +41,7 @@ const store = createStore({
          };
       },
       removePersonInvolved(state, payload) {
-         console.log('### mutation removePersonInvolved', payload.type);
+         //console.log('### mutation removePersonInvolved', payload.type);
          switch (payload.type) {
             case 'person':
                state.activity.persons = state.activity.persons.filter(person => person !== payload);
@@ -43,15 +57,39 @@ const store = createStore({
    },
    actions: {
       addPersonsInvolved({ commit }, payload) {
-         console.log('### action addPersonsInvolved', payload);
-         //let el = document.getElementById('form['activity']['xxx']['xxxx']');
-         //let option = document.createElement('option');
-         //option.value = person.id;
-         //el.appendChild(option);
+         console.log('### action addPersonsInvolved', payload.result.type);
+         switch (payload.result.type) {
+            case 'person':
+               let aPersons = document.getElementById("chill_activitybundle_activity_persons");
+               aPersons.value = addIdToValue(aPersons.value, payload.result.id);
+               break;
+            case 'thirdparty':
+               let aThirdParties = document.getElementById("chill_activitybundle_activity_thirdParties");
+               aThirdParties.value = addIdToValue(aThirdParties.value, payload.result.id);
+               break;
+            case 'user':
+               let aUsers = document.getElementById("chill_activitybundle_activity_users");
+               aUsers.value = addIdToValue(aUsers.value, payload.result.id);
+               break;
+         };
          commit('addPersonsInvolved', payload);
       },
       removePersonInvolved({ commit }, payload) {
          console.log('### action removePersonInvolved', payload);
+         switch (payload.type) {
+            case 'person':
+               let aPersons = document.getElementById("chill_activitybundle_activity_persons");
+               aPersons.value = removeIdFromValue(aPersons.value, payload.id);
+               break;
+            case 'thirdparty':
+               let aThirdParties = document.getElementById("chill_activitybundle_activity_thirdParties");
+               aThirdParties.value = removeIdFromValue(aThirdParties.value, payload.id);
+               break;
+            case 'user':
+               let aUsers = document.getElementById("chill_activitybundle_activity_users");
+               aUsers.value = removeIdFromValue(aUsers.value, payload.id);
+               break;
+         };
          commit('removePersonInvolved', payload);
       }
   }