Sometimes I'll have a big group come in pretty early, more so than the suggested 10 minutes that I say on the site, and they end up just sitting on the benches waiting for their stations to free up. Often times though, I'll have some of their stations free and they're just waiting on one or two stations to free up. I'll ask them if they just want to start some people on some of the stations now and as their stations become available we can get those people on next. Most of the time, people are okay with this.
As the system is now, I have to delete their current booking (or at least the individual stations in that booking) and create new, individual bookings for them to start now. This splits the group for when we use the new batch launcher and also for when they want to extend their time.
If we could go into a group booking and select the individual stations and tell it to Start Now just on that one station, that would make things much easier.