No worries about more questions, see my answers below:
#1. Does it the module work with multisites?
It works in multisite, but does not connect all the Calenders together or anything. It is separate for each site.
#2. If we decide to go “personal” and then eventually want to expand our communities to multiple sites … can we upgrade to the Business license or Developer license at a reduced cost? Ex. We already paid $65 to upgrade to Business – would it be only $35 additional? Business ($100) to developer be only $150 upgrade?
Correct if you upgrade you take out the cost you paid out of the license you are upgrading too. You can upgrade directly from your account’s license page for any of the plugins purchased.
I am going to close this ticket as the original question is answered and we try to keep one ticket per question. If you have anymore questions after this please just create a new ticket. Thanks!