Hello Koni,

Thank you for purchasing our product, and for reaching out to us.

You can achieve this in two ways. You can either add extras to the service

And instead 30 minutes more you can add "one more person" - 25 euro, "two persons more" - 40 euros,etc...

Or you can take a look at our Pro license that offer packages of services.

Packages of Services is the only feature that is not included in the Basic license, the rest of the features are absolutely identical. 

Packages of Services is a feature that allows creating packages of multiple appointments (of the same or different services). In that case, the services that are included in the package and the number of appointments will be fixed, and the price will be set for the whole package. Customers will be able to book included Appointments on any days, with no strict recurrence. 

You can see more information here.

Look at packages as gym packages. For example, you have "Gym access" service, "Treadmill" service, "Bike" service, "Spa" service,or "more people package" and so on. You can create a package that includes all these services for a reduced price. 

So, you create a "Full access" package, where all these services are included. You define the number of appointments per service, and allow your customers to book all these services in one go. 

So, a customer can book this package, and book "Gym access" for 5 days (free for choosing), "Treadmill" for 3 days, "Bike" for 2 days, "Spa" for 7 days, and so on. You define the number of bookings for each service. 

Hope that helps