Changing the Rail and Duct Length You can modify the length of the rails and ducts. Click Cabinet layout > Update rail or duct . The dockable panel displays the following options: Icon Description Pins the command so that it remains active. Stops the command after using it. Ends the command. Returns to the previous interface. Select the duct or rail to edit. Adjust the length by using the mouse or by entering the length. Parent topicHandling Cabinet Components