Once you've created your desk groups, you're ready to assign them to folks in your office. You can assign a desk from a few places.
From the space overview page
Navigate to Manage > Offices > Building > Space. Scroll down and select the Desk group you'd like to edit. Then choose assign available desk.
From the main Dashboard search page
Navigate to Office > select Desks under the location. Click on a green avatar in the desk group to assign it.