... have made a mistake? Hi David, Welcome to Templot Club. If you are still making changes to the control template (the one in brown), and haven't yet stored a copy of it, undoing (and re-doing) changes is very simple. Just click the blue arrow buttons in the top row, like this: 2_041218_130000000.png If the template has been stored on the background (the green ones), the procedure is different. Click on the template, so that its menu appears on the left: 2_041218_130000001.png Press D or click delete on that menu if you want to remove it entirely. Press M or click make the control if you want to make changes to it. The two templates will swap over, so that the one which you clicked becomes the control template. Make whatever changes you want. Then click the other template (the upper one in this screenshot), and press M or click make the control again to revert to working on that one. If you didn't want to revert to that one, after ...