Checkupdate = ParamToggle("Check date of symbol(s)?", "NO|YES", 1);
upddate = ParamDate("Choose last date to check", Now(1));
watchlistnumber = 0;
if( Checkupdate && (EndValue(DateNum()) < upddate) && Status("action") == actionExplore )
CategoryAddSymbol( "", categoryWatchlist, watchlistnumber);
SetSortColumns(2);
Filter = Status("LastBarinRange") && LastValue(DateNum()) < upddate;