Outlook Calendar for Specific Events

Hi everyone!
I see that there is a way to add Outlook calendar tokens for ALL events, but we would like to let people add calendar tokens for SPECIFIC events. Each of our different series is aimed at different groups, so we do NOT want to inundate attendees with lectures that do not reflect their interests or needs.
Is this possible?

Personally, I create a calendar entry (through Outlook as an .ics and then Zip the file) and connect it in the Overview area of the course then again in the Course Format/Instructions for after the Start button.

Let me know if you have any questions,
Susan Benysh