Edit a Tab
To edit a tab simply click in it and start typing! Tabs will automatically save as you work, and the changes will update for any collaborators in real time.
Tip: You can work in your tabs in fullscreen mode by clicking this button
in the tabs toolbar. Click 
to exit fullscreen.
If you can't edit a tab by clicking in it, check to see if it's in "Read Only Mode".
Click on the three dots
on the tab heading, and toggle "Read Only Mode" off (grey).
