Unfortunately, it is not possible anymore to modify the mouse position
programmatically. You approach with an additional cursor seems reasonable.

That slow-down can occur because your paint area is a single morph? How does
it draw? If you want efficient redraw with the damage-recorder working, you
should use morph composition. Every stroke should be a morph. This can
speed-up drawing routine.

Can you show some code?

Best,
Marcel



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