Remove side tab on Desktop?

Hi. New to this software.

Can’t figure out how to remove the sliding DEVONthink tab on the side
of my desktop.

Would appreciate any assistance.

Choose DEVONthink Pro Preferences > Sorter and Quit it.

Or click on the Sorter tab to open it. Click on the action button at the bottom (cogwheel symbol) and choose Quit.

Investigate it’s uses for capturing new content or sending notes to DT Pro, whether or not the DT Pro application is running.

How do I permanently stop the side tab from
appearing each time I boot up?

As with any startup item, go to System Preferences > Accounts > Login Items and remove DEVONthink Sorter from the list.