The next step: sister/brother bookings?

[Jonathan47]

The introduction of the parent/child booking integration in the calendar is a positive step forward. But what about introducing an integration of sister/brother bookings in the calendar? If one is hosting several houses it would be good to give guests the possibility of seeing in the calendar if they can book one, two or more houses at the same time.

[Branka-and-Silvia0]

What is the parent/child booking integration, how is this used and how does it look like=?