Hi RolandP,
Albert here, from BookThatApp!
BookThatApp is a powerful booking tool that you can use for the booking of your product and services that you’re offering on your Shopify site, you can use the app for different booking types such as product rental, appointments, classes, tickets, and more.
You can use our Course widget for your multiple-session booking, please see the following demo https://bookthatapp-demo.com/collections/courses/products/art-course
Here’s the setup guide that you can follow https://support.zetya.com/hc/en-us/articles/360000686815-Setup-Guide-Course-Widget
If you’d like to learn more about BookThatApp please feel free to reach out to us at support@zetya.com or support@bookthatapp.com
Cheers!
Albert
BookThatApp Support