Thanks for reaching out, Paul!
Our plugins do not provide any such functionality out-of-the-box, so displaying an “availability”-style calendar would unfortunately only be possible at this time with extensive custom coding.
So to make our plugins work as availability calendars, you would have to write that custom code or hire a professional developer to do it for you. We have a list of great developers here → http://m.tri.be/18k1 (and have no affiliation with any of these folks—they’re simply some well-respected names in the community that we’ve compiled to share in situations like this one).
Sorry to disappoint! Please let me know if there are any other issues or questions I can try to help with.
Thanks,
George