Undo and Redo

Undo and Redo functions are obtained over the "Undo / Redo" entries in the "Edit" menu-bar or directly from the -buttons in the button-strip. You can also use the short cuts "Ctrl" + "Z" (Undo) and "Ctrl" + "Y" (Redo). With the Undo-function you can return to previously concluded work-steps, with the Redo-function you can repeat them again. This applies to almost all changes relevant to the project. If you, e.g., change some parameters in the light dialog, you can undo these changes right after leaving the dialog by selecting the Undo-button.

If you select the arrow buttons next to the Undo / Redo -buttons than a listbox opens with a list of the last work-steps. By selecting an entry you can undo or redo several work-steps at one go.

The maximum number of operations recorded for undos and redos and the maximum amount of memory allocated for this task can be specified in the Customize-dialog.