I have a rectangle selection. As long as I stay on the rectangle selection tool I can click in the rectangle to change the size.
If I switch to another tool (e.g. move tool) and then come back to the rectangle selection tool it seems I can no longer edit the size of the selection. What I'd like is to be able to somehow re-activate the selection so that I can resize it to adjust the dimensions.
Is this possible in GIMP or do I have to create a brand new selection?