make it possible to change things per location in stead of only by service

Now you have to change openingtimes, special days and holidays per service per location. But it would be nice if I could change it for all the services at one location if I want to. Also the problem is I get the warning if I put it per service, that I reach the limit of special days!! So I don't know how to put the availability right for the special days for all the services.