diff --git a/src/pages/custom/ISVTopToolBar.vue b/src/pages/custom/ISVTopToolBar.vue
index af923cb..8b1a198 100644
--- a/src/pages/custom/ISVTopToolBar.vue
+++ b/src/pages/custom/ISVTopToolBar.vue
@@ -63,6 +63,20 @@
       />
 
       <q-btn
+        stretch
+        no-caps
+        v-else
+        :disable="!$store.state.power_state"
+        flat
+        stack
+        icon="img:new_icon/full_screen_icon.png"
+        class="q-mr-sm"
+        :label="$t('full screen window')"
+        @click="fullscreenWindow"
+      />
+
+      <q-btn
+        v-if="$store.state.custom_defines.function_output_board"
         stretch
         no-caps
         :disable="!$store.state.power_state"
@@ -73,6 +87,18 @@
         class="q-mr-sm"
         @click="switchOutputBoardState"
       />
+      <q-btn
+        stretch
+        no-caps
+        v-else
+        :disable="!$store.state.power_state"
+        flat
+        stack
+        icon="img:new_icon/exit_full_screen_icon.png"
+        class="q-mr-sm"
+        :label="$t('restore window size')"
+        @click="exitFullscreenWindow"
+      />
 
       <q-btn
         stretch