> but why do you only refer to image position? what about image scaling?

Yup, sorry I do intend to do scaling as well.

I have undo for selection finished now - so with the next beta if you make a selection mistake, for example click off somewhere and deselect everything, you can hit undo to restore the selection.

It doesn't store a whole history of selection through multiple steps, just the last one so you can just fix one immediate selection mistake. But I think this will come in handy.

- Michael