19.1.2 The Commands

q Validating an action



This button validates the current action.
You can then select another tool or element.

You can also use the “OK” button of the pulldown menu or press the Return key to validate an action.

q Canceling an action


Clicking on this button will quit the current action.
Any modification performed within the current tool will be canceled. It will also drop the tool, allowing the user to select another tool or element.

You can also use the Escape key of the keyboard to quit an action, or select the Quit command in the Edit pulldown menu.

q Undo a step (“Undo” button)

Clicking on this button will cancel:

· Within a tool: The last step performed with the tool.
In this case there are as many undos as there were operations performed with the tool.

· Outside of a tool: All the operations performed by the last tool used.
In this case, the number of possible undos is defined by the user in the Preferences menu. (See chapter User Manual/Preferences/Recovery/Number of undos.)

You can also use the keyboard shortcut o cancel an operation (On PC: Ctrl+Z; on Mac: Command+Z).

q Redo an operation ( “Redo” button)

This command re-does the last canceled action.

You can also use the keyboard shortcut to re-do an action (On PC: Ctrl+R; on Mac: Command+R).