Google has announced an experimental feature in the developer version of Chrome OS that allows you to access more than one user profile at the same time, easily flicking between them, as well as passing both tabs and files back-and-forth between profiles.
Switching profiles is as easy as clicking on the profile picture in the system tray popup. […] One nice thing, but still highly experimental, is that you can move windows to different profiles with a simple right click in the window top bar. As you can see in the video, even the Files App even supports this feature.
To access the feature in the Chrome OS dev channel, enter the following line:
If you’re not currently using the dev channel, you can find instructions for switching here, but note that by definition you can expect to experience some glitches. The stable channel is always recommended when working on anything important.