If an organization has more than one box office setup - i.e. a university has multiple departments selling tickets that are set up as unique organizations under their parent organization, users can sell/manage box office functions for any/all of them.

When adding permissions, select 'Producer' or 'Box Office Manager' and 'Create/Switch Organizations'.

If you use a Gmail address you can use the +1 option to differentiate between accounts, but you will need to ensure that you use that to log in with. Otherwise if you are a producer on a parent account, you can have the option to switch by toggling between parent account on the drop down menu in the upper left corner.