Undoing and Redoing an Action in the Sequence Pane
You can undo or redo an action in the Sequence pane, such as restoring a clip that you deleted. You can undo or redo up to 100 actions. The undo/redo list is not saved after you sign out of a session.
If an action affects a marker (Interplay Production assets only), the change is also shown in the Logging pane. For example, if you add a marker to a sequence, then trim the sequence to remove the marker, the marker is removed from the list in the Logging pane. If you undo your action, the marker is restored to both the sequence and the Logging pane.

There is currently no Undo/Redo feature specifically for the Logging pane.
If you are working on a script and a sequence together, the same set of Undo actions applies to both the Story pane and the Sequence pane. If you load a new sequence or close the Sequence pane, the Undo actions are lost in the Story pane.
To undo an action, do one of the following:

Press Ctrl+Z (Windows) or Command+Z (Macintosh).

Select Undo from the Sequence pane menu.

Right-click in the Sequence pane and select Undo from the context menu
To redo an action, do one of the following:

Press Ctrl+Y (Windows) or Command+Y (Macintosh).

Select Redo from the Sequence pane menu.

Right-click in the Sequence pane and select Redo from the context menu