Yes, certainly you can use your Chromebook as a monitor and here's how. Locate the Air Tab section on your Chromebook computer. Tap on the sign-in option for remote access to gain access to your Air account. After that, find your profile tab, and check screen sharing enabled. Once you've confirmed that, go to your Settings section and inspect Enabled Duet Air. When you do all these correctly, you should now be able to activate your Chromebook as a second monitor for your personal computer.