If you would like to delete a Group, there are two ways you can do this. Please note that deleting a Group does not actually remove the underlying SmartShades from the app. It also does not affect any Groups created by other users in your household.
If you are looking to delete the SmartShades from the app, see instructions here.
Find the Group you would like to delete by going to the Groups dashboard (tap the "Groups" icon at the bottom of the screen).
Tap and hold the Group you would like to delete. In the pop-up that appears, tap "Delete" to delete this Group.