Estochin

Thanks in advance for any help on this. I create a lot of Text Boxes in Paint.net My question is once I create a Text Box and move on to something else, to my knowledge there is no way to go back and work/edit in that Text Box that I created earlier. If there is a fair amount of text in the box, and I need to modify it, I have to start over with a new text box. I wonder if I'm missing something. It would seeme to me there would be a way to Select that Text Box and edit the text it it. Thanks.