Question

Q1) when is the redo command activated what does it show otherwise ?

#NoSpAmS !​

Answer 1

Explanation:

Redo is the opposite of undo: it redoes an action you have undone. For example, if you decide that you do, after all, want to delete an item that you have just brought back with undo, you can redo the action. The Redo button is only available right after you've undone something.

Answer 2

Answer:

To redo the most recent action that you undid, press CTRL+Y.

To redo several actions, do one of the following:

Press CTRL+Y repeatedly until the actions are redone.

On the Quick Access Toolbar, click the arrow next to Redo Button image, and then click the actions that you want to redo.

The actions are redone in the order in which they are listed. You can only redo the actions in the order in which they occurred. For example, you cannot redo only the second action that you undid. To redo the second action, you must also redo the action that preceded it: