Hi Mitch,
Thanks for looking into The Events Calendar!
There is not currently a way to add other post types to the calendar (in either the free or Pro versions), but you could potentially do a customization to get them to display there. Our themer’s guide and functions list would be a good place to start!
We are only able to provide technical support in our premium support forums, as we use our Pre-Sales forum to answer questions about the features of our premium plugins for those interested in purchasing them. However, please note that we are limited in the amount of support that we can provide for customizations, even in the premium forums.
Please let me know if you have any other questions!
Thanks,
Jennifer