Using the Dock Understanding the Basics To remove a tray To remove a tray, slide the tray release latch forward until the tray pops up. Tray release latch To dock the OmniBook 1. Place the dock on a flat surface. 2. Slide the OmniBook’s rear port door to the left. The OmniBook 4100 laptop PC rear port door opens automatically when you install it in the port replicator. 1-14