Will a rehearsal session appear in the event’s main agenda?

No, rehearsal sessions do not have an impact on the event’s main agenda and these sessions will not be visible to normal attendees.

P.S. In case this didn't fully answer your question or want to see a live demo or ask live Q&A, join our Hybrid and Virtual Event Setup Whova Academy! We host a live session covering the our Virtual and Hybrid tab every Wednesday at either 9AM or 1PM PDT.