diff --git a/src/OLEDUIPlus.cpp b/src/OLEDUIPlus.cpp
index 95d977c..809c3fa 100644
--- a/src/OLEDUIPlus.cpp
+++ b/src/OLEDUIPlus.cpp
@@ -383,4 +383,13 @@ void OLEDUIPlus::setOnCb(oledon olon)
     _oledon = olon;
 }
 
+bool OLEDUIPlus::isMainFrame(uint8_t idx)
+{
+    bool retval = false;
+
+    if (idx == _mainFrame)
+        retval = true;
+    return retval;
+}
+
 OLEDUIPlus ui;
diff --git a/src/OLEDUIPlus.h b/src/OLEDUIPlus.h
index 48ef9fb..2ef6d49 100644
--- a/src/OLEDUIPlus.h
+++ b/src/OLEDUIPlus.h
@@ -62,6 +62,7 @@ public:
     bool isVisible(void);
     void setOffCb(oledoff oloff);
     void setOnCb(oledon olon);
+    bool isMainFrame(uint8_t idx);
 
 #if defined(USE_OTA)
     void OTAStart(void);