You can link any two users so that you could easily switch between two or even more accounts. You can even set rights that would restrict selected users from certain functions like money transfers.
Both Business and Private account holders respectively can link other users to their business accounts.
Heres how to do it:
1. Enter your business account via a web browser.
2. Go to the settings wheel and click 'Linked user'
3. Enter the e-mail of the user you want to link and click 'Create'
Note: owner of the e-mail has to have a Mistertango account.