Kreslik.com - traders community since 2006

I have the list of lunar cycle dates that I would like to put on every daily chart I use in Tradestation. Since the vertical lines I put on one chart, don't show up when I change symbols, I would like to write a simple .eld to plot these specific dates on all daily charts. Does anyone have sample code for drawing vertical lines at specific dates? I know nothing about EasyLanguage, but will slog thru the code, but, so far, I haven't found an example.