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  4. Undo and Redo Commands
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  4. Undo and Redo Commands
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  3. Getting Started
  4. Undo and Redo Commands
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  3. HEC-RAS Model Troubleshooting
  4. Undo and Redo Commands

Undo and Redo Commands

The Undo and Redo commands are complimentary and can be quite helpful when working on an engineering project. The important thing to keep in mind is the order in which you performed previous commands.

For example, from the Quick Access Toolbar, when you click once on the Undo command (or press Ctrl+Z), the software reverses the last thing you did. If you click on the Undo command again, the software will undo the next most recent thing you did—and so on.
Quick access toolbar

Clicking on the Redo command (or pressing Ctrl+Y) will reverse what you just did with the Undo command. So, each time you click on the Redo command, the corresponding Undo command will be reversed. The Redo command is helpful in circumstances where you have used the Undo command multiple times and want to bring back an earlier version of something. However, the Redo command must be used immediately after using the Undo command.

Undo / Redo Command List Box

A convenient way to undo previous commands is to select the commands from the Undo dropdown list box in the Quick Access Toolbar. Click on the small down arrow adjacent to the Undo command and the most recent commands will be listed. You can then click on the command in the list box or drag the cursor to select multiple commands at once that you want to undo.
Undo dropdown list box

Note that the undo and redo listing is specific to the current Map View. Each project (or Map View) has its own undo and redo listing.

Canceling a Command

In addition to the Undo command, you can cancel out a command while it is active by pressing the Esc key.

Cannot Undo Some Commands

Some commands will not respond to the Undo command. For example:

  • Save Project
  • Open Project
  • New Project
  • Add Layer
  • New Layer
  • New Layer Group
  • and others…

Data Dialog Undo / Redo Command

Each data dialog box within the entire range of data dialog boxes, such as the Cross Section Data dialog box, has their own Undo and Redo commands. This provides further undo and redo granularity while editing the data element.
Cross Section Data dialog box

About the Author Chris Maeder

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