New group in sorter

Maybe I am missing this but can you add a new group to Devonthink 3.0 from the sorter? It seems that you can add one from the metadata window but I cannot figure out how to add one without opening the entire program. Sometimes you have a document that you would like to add but decide a new group is best. Am I missing how to do this?

The destination popup includes the possibility to create new groups, this is available in all Sorter tabs except the navigation tab.

Sorry. Could you explain that

See “New Group…” menu item: