Thanks for your answer. I was aware of that option; yet, it doesn't allow to check the two (or three) data series at once (on the same scaling/right), so that when I change the scale all data series (e.g., eurusd min 5, min 15, and min 60) change at the same time. So that their studies (EMA) are at ...

have two instruments on the same chart eurusd 5 and 60 min (purpose is to plot the 60 min EMA20 on eurusd 5 min chart. eurusd 60 set to invisible and EMA20 visible. The problem: when I adjust Y-scale by clicking and dragging the Y-scale, the inserted instrument (eurusd 60 min and its EMA20) doesn't ...