This support article will help you to download and install the Time Doctor Chrome app on your Chromium OS.
First, please go to Chrome web store and download Time Doctor Chrome app.
Chrome app will be added to your apps. You can access it by clicking apps in your Chrome browser:
Please log in into your app and make sure you select a screen to share so that Chrome app could record your screenshots (if this is required by your company Administrator). Select a task and start tracking your time!