I have two charts linked. One shows NQ 09-25 and the other shows NQ SEP25. How do I get them to show the same?
I’ve had the same thing, & I use Instrument linking. Sorry can’t recall steps to replicate to fix it (which I did), all I can suggest is you just fiddle around try adding & removing Data Series, un-linking/re-linking removing/adding instrument whilst un-linked, that sort of thing. Trial & error but at least you know it can be done!
Have you tried, right-click on the tab and select Rename? There several options available.
https://ninjatrader.com/support/helpGuides/nt8/using_tabs.htm
Scroll down to Tab Name Variables. That might help you.