Instruction Manual

358 Arranging

Undo, Redo, and the Undo History

anyway. If you do choose to perform the operation, you will not be able to

undo it. Therefore, you may want to save your project first.

The Edit-History command displays a complete history of the commands

and actions you can undo for the current project. The Undo History dialog

box looks like this:

A. Most recent change B. Click to clear the undo history C. Adjust the number of

steps you can undo

The History command is grayed out until you make a change to the current

project that can be undone.

The History list is updated every time you make a change to a project. For

example, if you insert a new note into a project using the Piano Roll view,

that action is added to the History list. This entry remains on the list—even

if you undo the change—so that you can redo the change later on. If you

delete the note, this change is added to the History list.

You can click the Clear button in the Undo History dialog box to erase the

undo history for the current project and free up some memory. If SONAR is

low on memory, it may offer to erase the History list.

To revert to an earlier version of a project, highlight the entry in the History

list that represents the point to which you’d like to return, and click OK.

SONAR performs the necessary undo or redo actions to take you to that

point. Once you edit the project (for example, by inserting a note), the

History list is truncated at that point. Then, as you do further work, the

History list grows again. Any events occurring before the event you

highlighted remain on the list.