MQL5 ReferenceStandard LibraryPanels and DialogsCCheckGroupAddItem CreateOnEventAddItemValueCreateButtonOnVScrollShowOnVScrollHideOnScrollLineDownOnScrollLineUpOnChangeItemRedrawRowState AddItem Adds an item (row) to the control. bool AddItem( const string item, // text const long value // value ) Parameters item [in] Added control label text. value=0 [in] Value associated with the added control. Return Value true - successful, otherwise - false. OnEvent Value