Hi LynetteFloweringLotus! This is certainly possible with the help of routing forms. I’ll describe the basic process below.

1. Create two event types. One for an in-person meeting and one for an online meeting.
   • Two benefits here. You can add a payment option for the online meeting and leave out the payment option for the in-person meeting. This also simplifies locations as each event type will use it’s own separate location.
2. Set up a routing form. 
   • Go to "Routing Forms" and click "New Routing Form."
   • Add a radio button question: "Would you like to book an online session or an in-person session?"
3. Set up routing form logic.
   • If "Online Session" is selected, route to the "Online Session" event type.
   • If "In-Person Session" is selected, route to the "In-Person Session" event type.
4. If applicable, embed your routing form in your website.
   • Use the embed code or provided link to share the routing form with your clients.

I hope this helps and don’t forget to test! I’m also going to leave a few links below with Help Center articles on routing forms. 
 

Getting started with Routing Forms

For more advanced Routing Forms → Create a Multi-Step Routing Form

A work around for Group Event Routing Forms (with some additional links at the bottom of the post) → Can you create a Group Event Type with two location options?

Embed Routing Questions → How to embed a routing form