Is there any way to add ToDo back to the ribbon? I can use the shortcut keys 'Ctrl 1' but users do not know this command. The OneNote version I'm using is 16001.11231.20118.0. I don't understand why this would have even been slated for removal.
If you're on the Windows 10 version then the To Do tick box is under Tags on the far right in the ribbon. If you're using OneNote 2016 then right click in the ribbon (anywhere should work if its a blank area) and then customise. This should let you add it back.