diff --git a/src/boot/i18n.ts b/src/boot/i18n.ts
index 9a7a085..a6e7113 100644
--- a/src/boot/i18n.ts
+++ b/src/boot/i18n.ts
@@ -27,6 +27,7 @@ Cookies.set("language", language, {
 (<any>window).currnet_use_language = language;
 
 const i18n = createI18n({
+  legacy: false,
   locale: language,
   messages,
 });
diff --git a/src/components/SignalSourceTree.vue b/src/components/SignalSourceTree.vue
index 483af09..2fdf227 100644
--- a/src/components/SignalSourceTree.vue
+++ b/src/components/SignalSourceTree.vue
@@ -9,7 +9,7 @@
           :draggable="
             prop.node.uuid != '' &&
             $store.state.power_state &&
-            !prop.node.item_data.system_default
+            (!prop.node.item_data.system_default || !prop.node.is_group)
           "
           @dragstart="(evt) => onDragStart(evt, prop.node)"
           @dragover="(evt) => onDragOver(evt, prop.node)"
@@ -319,6 +319,9 @@ export default defineComponent({
                       (item) => item && (item as any).uuid == uuid
                     );
                   if (signal_source_group) {
+                    if (signal_source_group.system_default) {
+                      return;
+                    }
                     if (
                       signal_source_group.parent_uuid == node.item_data.uuid
                     ) {
@@ -340,6 +343,10 @@ export default defineComponent({
                       (item) => item && (item as any).uuid == uuid
                     );
                   if (signal_source) {
+                    if (signal_source.system_default) {
+                      return;
+                    }
+
                     if (signal_source.group_uuid == node.item_data.uuid) {
                       return;
                     }
diff --git a/src/components/SystemSettingDialog.vue b/src/components/SystemSettingDialog.vue
index f4b43ea..f5d4d40 100644
--- a/src/components/SystemSettingDialog.vue
+++ b/src/components/SystemSettingDialog.vue
@@ -81,18 +81,12 @@
             :label="$t('timing task')"
             :disable="loading"
           />
-          <q-tab
-            name="other"
-            no-caps
-            icon="build"
-            :label="$t('other setting')"
-            :disable="loading"
-          />
           <q-tab
             v-if="
               $store.state.advanced_debug ||
               (!$store.state.custom_defines.is_custom_isv &&
-                $store.state.custom_defines.function_output_board)
+                $store.state.custom_defines.function_output_board &&
+                $store.state.isLedPlayer())
             "
             name="output_board"
             no-caps
@@ -100,6 +94,13 @@
             :label="$t('output board setting')"
             :disable="loading"
           />
+          <q-tab
+            name="other"
+            no-caps
+            icon="build"
+            :label="$t('other setting')"
+            :disable="loading"
+          />
           <q-tab
             name="user"
             no-caps
@@ -1224,7 +1225,7 @@
                       />
                       <q-space />
                     </q-item>
-                    <q-item class="border">
+                    <q-item class="border" v-if="$store.state.isLedPlayer()">
                       <q-space />
                       <q-btn
                         @click="onCleanBrowserCache"