On this note, is it possible to set up real-time alerts with Google analytics? I'd like to set up an alert like "If the number of real-time simultaneous users r

On this note, is it possible to set up real-time alerts with Google analytics? I'd like to set up an alert like "If the number of real-time simultaneous users rises above n, send an email to this address." I don't believe it is possible, but it seems like an extremely useful feature.