One on the charting software I use displays any and all drawn simple objects like rectangular boxes or trendlines on all open charts of a given instrument, very useful, even when I put a cursor lets say on M30, it s indicated as a vertical box on lower TFs , or as a line on higher TFs, so one can see PA inside that M30 bar on M5 or whichever other TF one wishes to examine that PA. That also applies to fibs, also useful with significant WRB, useful for beginners, as experienced traders see these things without too much drawn fibs, or other objects.
Wishing all a great weekend,
2be