As an administrator you have the ability to define who is allowed to submit, accept and reject in any particular collection.
You can also create groups and assign them to collections, and change the access control of existing collections. This is all done in the ‘access control’ tab at the top of the administration screen.
You can administer e-people by clicking the first option, ‘e-people’ and then selecting an e-person to administer. Then click save, and you have completed the process.