All Suite questions

1. How do I add a user to my Suite? How do I remove someone?
2. Is the 37signals Suite still available?
3. How do I cancel or break apart my Suite?
4. How many conference call minutes are included with each Suite plan?
5. How do I make someone an admin?
6. Can I send invoices to someone else?
7. How do I change my Suite name?
8. Can I make someone an admin in Basecamp but not in Highrise?
9. How can I change my Suite plan?
10. Does the Suite include the Backpack calendar?