You can undo any editing actions that you perform on the Design Canvas, and you can
redo any actions that you have previously undone. These options are not available
for changes made in the Properties view.
To undo an action, select or press Ctrl+Z. To redo, select or press Ctrl+Y. (In some cases involving
controls that have built-in design tools, you may need to use the Undo command
multiple times before you see the desired result.)
The undo/redo stack for the
Design Canvas is maintained separately from the stack for
other Eclipse components. To undo or redo Visual Designer actions, you must have
focus on the design window.
Note: Only editing actions that have occurred since the
most recent save operation can be undone and redone; you cannot use Undo to
return to a state earlier than the latest saved version of the file. To revert
to an earlier saved version, right-click the class file in the Project
Explorer view and select from the context menu.