Setting max signups in formBuilder

[asbjorno]

My case is that I'm trying to make a form where people can sign up for joining a trip, but we only have room for X number of people.

Is there any way that I can show people how many people more can join before it's full, and when it has reached this number, not allowing any more people to join (and maybe also show a message like "sorry, all seats has been booked"?