diff --git a/radio/src/gui/128x64/gui.h b/radio/src/gui/128x64/gui.h
index ccd2b5545..316f70a88 100644
--- a/radio/src/gui/128x64/gui.h
+++ b/radio/src/gui/128x64/gui.h
@@ -305,6 +305,7 @@ int8_t editSwitch(coord_t x, coord_t y, int8_t value, LcdFlags attr, event_t eve
 #if defined(GVARS) && defined(CPUARM)
 int16_t editGVarFieldValue(coord_t x, coord_t y, int16_t value, int16_t min, int16_t max, LcdFlags attr, uint8_t editflags, event_t event);
 void drawGVarName(coord_t x, coord_t y, int8_t index, LcdFlags flags=0);
+void drawGVarValue(coord_t x, coord_t y, uint8_t gvar, gvar_t value, LcdFlags flags=0);
 #elif defined(GVARS)
 int16_t editGVarFieldValue(coord_t x, coord_t y, int16_t value, int16_t min, int16_t max, LcdFlags attr, event_t event);
 #else
@@ -431,6 +432,8 @@ void deleteMix(uint8_t idx);
 typedef int (*FnFuncP) (int x);
 void drawFunction(FnFuncP fn, uint8_t offset=0);
 
+void onSourceLongEnterPress(const char *result);
+
 uint8_t switchToMix(uint8_t source);
 
 void deleteExpoMix(uint8_t expo, uint8_t idx);
diff --git a/radio/src/gui/128x64/model_special_functions.cpp b/radio/src/gui/128x64/model_special_functions.cpp
index 504c1eb89..7a50aff6d 100644
--- a/radio/src/gui/128x64/model_special_functions.cpp
+++ b/radio/src/gui/128x64/model_special_functions.cpp
@@ -71,6 +71,36 @@ void onCustomFunctionsFileSelectionMenu(const char * result)
 #endif
 
 #if defined(PCBX7)
+
+void onAdjustGvarSourceLongEnterPress(const char * result)
+{
+  CustomFunctionData * cfn = &g_model.customFn[menuVerticalPosition];
+
+  if (result == STR_CONSTANT) {
+    CFN_GVAR_MODE(cfn) = FUNC_ADJUST_GVAR_CONSTANT;
+    CFN_PARAM(cfn) = 0;
+    storageDirty(EE_MODEL);
+  }
+  else if (result == STR_MIXSOURCE) {
+    CFN_GVAR_MODE(cfn) = FUNC_ADJUST_GVAR_SOURCE;
+    CFN_PARAM(cfn) = 0;
+    storageDirty(EE_MODEL);
+  }
+  else if (result == STR_GLOBALVAR) {
+    CFN_GVAR_MODE(cfn) = FUNC_ADJUST_GVAR_GVAR;
+    CFN_PARAM(cfn) = 0;
+    storageDirty(EE_MODEL);
+  }
+  else if (result == STR_INCDEC) {
+    CFN_GVAR_MODE(cfn) = FUNC_ADJUST_GVAR_INCDEC;
+    CFN_PARAM(cfn) = 0;
+    storageDirty(EE_MODEL);
+  }
+  else {
+    onSourceLongEnterPress(result);
+  }
+}
+
 void onCustomFunctionsMenu(const char * result)
 {
   int sub = menuVerticalPosition;
@@ -399,8 +429,17 @@ void menuSpecialFunctions(event_t event, CustomFunctionData * functions, CustomF
                 drawStringWithIndex(MODEL_SPECIAL_FUNC_3RD_COLUMN, y, STR_GV, val_displayed+1, attr);
                 break;
               default: // FUNC_ADJUST_GVAR_INC
+#if defined(PCBX7)
+                val_min = -100; val_max = +100;
+                if (val_displayed < 0)
+                  lcdDrawText(MODEL_SPECIAL_FUNC_3RD_COLUMN, y, "-= ", attr);
+                else
+                  lcdDrawText(MODEL_SPECIAL_FUNC_3RD_COLUMN, y, "+= ", attr);
+                drawGVarValue(lcdNextPos, y, CFN_GVAR_INDEX(cfn), abs(val_displayed), attr|LEFT);
+#else
                 val_max = 1;
                 lcdDrawTextAtIndex(MODEL_SPECIAL_FUNC_3RD_COLUMN, y, PSTR("\003-=1+=1"), val_displayed, attr);
+#endif
                 break;
             }
 
@@ -419,9 +458,26 @@ void menuSpecialFunctions(event_t event, CustomFunctionData * functions, CustomF
           else if (attr) {
             REPEAT_LAST_CURSOR_MOVE();
           }
-
+#if defined(PCBX7)
+          if (active || event==EVT_KEY_LONG(KEY_ENTER)) {
+            CFN_PARAM(cfn) = CHECK_INCDEC_PARAM(event, val_displayed, val_min, val_max);
+            if (func == FUNC_ADJUST_GVAR && attr && event==EVT_KEY_LONG(KEY_ENTER)) {
+              killEvents(event);
+              if (CFN_GVAR_MODE(cfn) != FUNC_ADJUST_GVAR_CONSTANT)
+                POPUP_MENU_ADD_ITEM(STR_CONSTANT);
+              if (CFN_GVAR_MODE(cfn) != FUNC_ADJUST_GVAR_SOURCE)
+                POPUP_MENU_ADD_ITEM(STR_MIXSOURCE);
+              if (CFN_GVAR_MODE(cfn) != FUNC_ADJUST_GVAR_GVAR)
+                POPUP_MENU_ADD_ITEM(STR_GLOBALVAR);
+              if (CFN_GVAR_MODE(cfn) != FUNC_ADJUST_GVAR_INCDEC)
+                POPUP_MENU_ADD_ITEM(STR_INCDEC);
+              POPUP_MENU_START(onAdjustGvarSourceLongEnterPress);
+              s_editMode = EDIT_MODIFY_FIELD;
+            }
+#else
           if (active) {
             CFN_PARAM(cfn) = CHECK_INCDEC_PARAM(event, val_displayed, val_min, val_max);
+#endif
           }
           break;
         }
diff --git a/radio/src/gui/128x64/widgets.cpp b/radio/src/gui/128x64/widgets.cpp
index c831732f5..3d814f80a 100644
--- a/radio/src/gui/128x64/widgets.cpp
+++ b/radio/src/gui/128x64/widgets.cpp
@@ -116,6 +116,15 @@ void display5posSlider(coord_t x, coord_t y, uint8_t value, uint8_t attr)
 
 
 #if defined(GVARS) && defined(CPUARM)
+void drawGVarValue(coord_t x, coord_t y, uint8_t gvar, gvar_t value, LcdFlags flags)
+{
+  uint8_t prec = g_model.gvars[gvar].prec;
+  if (prec > 0) {
+    flags |= (prec == 1 ? PREC1 : PREC2);
+  }
+  drawValueWithUnit(x, y, value, g_model.gvars[gvar].unit ? UNIT_PERCENT : UNIT_RAW, flags);
+}
+
 int16_t editGVarFieldValue(coord_t x, coord_t y, int16_t value, int16_t min, int16_t max, LcdFlags attr, uint8_t editflags, event_t event)
 {
   uint16_t delta = GV_GET_GV1_VALUE(max);