Both axes are set with fixed range
Pressing arrow keys up or down vertically scrolls both price AND indicator axes at the same time.
Another different wrong effect appears if I use mouse to scroll (left click and drag)
In this case correctly only price or indicator moves (depending on what axis I left click and drag) but vertical range increase slightly when I release the left button.
Obviously this effect add up at every scroll.
To view this effect is necessary to perform many vertical scrolls releasing the left button of the mouse between them
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