In addition to Automatically Synchronizing Showing Schedules with Third Party Calendars, ShowMojo can be configured to include individual showing invites and updates on the showing details emails that it sends to various users.
The inclusion of invites on individual emails is for users who would like to "cherry-pick" individual events that they are interested in. But it is important to note ShowMojo Does Not Send a Showing Details Email in every scheduling scenario.
Users who are interested in seeing their entire showing schedule on their calendar (the most common use case by far), should configure ShowMojo to do this automatically.