Let’s take a quick look at each menu item.

Undo (Ctrl+Z)

Reverses an action. If you’ve made a bad automation pass, cut something you didn’t really want cut, pasted somewhere you didn’t want to paste, etc., simply select Undo and the D8B reverts to its previous status.

Selecting Undo multiple times steps back through the history list (list of actions taken), all the way back to the Top Level (starting point) if necessary. Open the History List (Ctrl+H) to check it out.

Redo (Ctrl+Shift+Z)

Reverses an Undo. If you’ve undone an action, or set of actions, you might determine that your original guess was best.

Redo is a multilevel command, like Undo, so multiple redo commands retrace your steps through any undone actions in reverse order—the last is first and the first is last.

Cut Channel (Ctrl+X)

Removes selected data: channel, track, automation, dynamics, etc.

Information that’s been Cut is stored on the clipboard, awaiting reassignment or purging.

Information in the clipboard can be pasted to another channel, track, region, etc.

Cutting data typically restores selected channels or regions to their default settings or to off.

The History List keeps a running list of the Edit choices for later recall.

Copy Channel(s) (Ctrl+C)

Places selected data on the clipboard, awaiting reassignment.

Copying data has no effect on the data being copied.

Copied data is reassigned using the Paste command (Paste Channels, or the Paste button in the onboard Clipboard section).

Paste Channels (Ctrl+V)

Replaces the data in a selected channel, region, or area with relevant data residing in the clipboard.

When multiple channels are on the clipboard, data from the lower channel numbers are pasted first when there are fewer number of target tracks selected.

Paste can be undone.

Delete Events (DEL)

This action deletes any selected events or range of events. This action is entered on the History List and available for Undo, as long as it remains on the list.

Set Default Levels…

This is a very useful automation tool and is the primary starting point for the automation process.

For use in automation, this feature sets the current levels of the faders on the selected channels as the default through the range of SMPTE time code.

Changes to automation data can be selected to retain their adjusted status until another automation move is written, or to snap back to the default level upon exiting Write mode (see Write Flyback on page 61).

Modify Levels (Alt+M)

Use this control to modify all selected channels for the user-selected parameter.

D8B Manual • Chapter 3 • page 54