diff -r 419de2dea82b -r a8fd5490932f QTfrontend/ui/page/pagemain.h
--- a/QTfrontend/ui/page/pagemain.h	Sun Sep 30 01:41:12 2018 +0200
+++ b/QTfrontend/ui/page/pagemain.h	Sun Sep 30 03:18:16 2018 +0200
@@ -40,6 +40,7 @@
         QPushButton * BtnInfo;
         QPushButton * BtnDataDownload;
         QPushButton * BtnVideos;
+        QPushButton * BtnHelp;
         QLabel * mainNote;
 
     private: