Krita's Popup Palette has a button to toggle Mirror View, and it has been set to "Mirror View Around Cursor". I suggest we change this button to "Mirror View Around Canvas" -- what Krita assign to the M key by default.

I suppose this button is there to provide easy access to Mirror Mode. However, since it's "Mirror View Around Cursor", it completely defeats its purpose -- Mirror view jumps around uncontrollably, often outside the point of interest, I will have to move the canvas every time to follow the changed position. I tried to open the Popup Palette in the middle of the canvas to make the point of interest stay in view, only to find a significant part of it blocked by the Popup Palette itself. 

As of now, this button is not helpful, especially for the Android tablet users who needed it the most. 

We only expect M key function from it. Let us open Popup Palette in the corner of the canvas, and be able to toggle the Mirror View like the M key we use all the time.