Editor box improvement: adding Rows/Cols +/- button to the other side of the character

[Nagymadar]

Rows/Cols +/- buttons are adding/removing one row/column on the right/bottom side. I encountered several times the problem, when I had to extend the character on the left or top side. The only way to do so now, is to extend and shift the whole character, pixel by pixel erasing and redrawing it.

As solution I recommend to split the + / - Row button vertically to 2 (horizontally for Cols), to make extension possible the other side. These splits save space and also intuitively gives the user the desired extension direction.

Another, more intuitive GUI solution idea is adding arrow buttons around the character and also the pixel editor area. First set is for extending, second for x/y offset. I always have to try both directions when I offset a character. This would be more intuitive for the user for all 4 controls, but also a lot more difficult to implement.