Here you can specify whether you want to
Before you can make changes to an existing mask you have to select it. To rename a mask you select it first and and then write the new name into the field in front of the button 'Rename'. Then, click 'Rename'.
Please note that you must choose a unique name which does not contain any blank spaces and does not begin with a number.
Whether you create a new mask or make changes to an existing one, there are always the following settings to consider.