You can undo up to seven of your last actions by choosing Undo from the Edit menu. After choosing Undo, you can then choose Redo to repeat the original action, which restores the canvas to its condition before you chose Undo. You never need to worry about what an action will do to your icon because of this feature. If you don't like the results, simply use Undo and Redo to restore the icon to the way you like it best.
Each time you Undo an action, that action becomes available to you as a Redo action (up to a maximum of seven actions). Each Redo performs the most recent Undo action. The number of Undo actions and Redo actions that are available to you at any time is displayed in the Icon Editor footer.
You can use the Cut, Copy, and Paste items to move and copy regions of your icon, or the entire icon.
When you choose Cut on the Edit menu, the current region is removed from the icon and put on the clipboard. If you don't have a region currently defined, the entire icon is deleted and put on the clipboard.
To define a region, choose the Region drawing mode, move the pointer to the canvas where you want to start the region, press SELECT, drag the pointer to the opposite corner of the desired region, and release SELECT. The region is displayed by a dashed-line border. The lines of the border appear to be blinking, like the lighted sign of a theater marquee.
When you choose Copy on the Edit menu, the current region is copied to the clipboard but is not removed from the icon. If you don't have a region currently defined, the entire icon is copied to the clipboard.
Before choosing Paste on the Edit menu, define the region where you want to paste the contents of the clipboard. When you choose Paste on the Edit menu, the contents of the clipboard are copied to the icon, placed so that the upper left corner of the clipboard contents matches the upper left corner of the current region.
If you choose Paste from the keyboard (depending on your keyboard type), the contents of the clipboard are placed so that the upper left corner of the image goes to the position of the mouse.
Choose the Invert item on the Edit menu when you have a black-and-white icon to change black pixels to white, and vice-versa, in your current region. If you do not have a region selected, Invert works on the entire icon. If your icon is color, the Invert item is dimmed and unavailable.