Absolutely. Sorry for the late reply but I have been doing this alone for quite a while
Go to your dashboard and zoom in for an area that you want to be responsible for. Click the button Permalink in the bottom right.
Copy that address from the addressfield in your browser and send a request to firstname.lastname@example.org
and tell them that you want to be area manager for that area.
When this is done you will have full control over your area and can edit as much as you want.