I got my last stroke using StrokeGetLast.
And I can replay it using [CanvasStroke, [StrokeGetLast]].
But I want to replay only some part of the stroke for example 50% of it.
And I do not want to change any other parameters.
In that case, I just want to do it as if I only made half the movement when I did a stroke.
How to do this?