Alert sound for big-block time/sales

In another platform you can set an audible alert on the times and sales function with a threshold number - e.g. a 500-block order transacts, you can make it go Ding-Dong.
This was really handy for me when using that feature as it allowed me to do other things while waiting for an entry-signal, and when the big-block buyers showed up, I knew it was go-time. It was also useful if I wasn’t particularly watching something, but large-block buyers were appearing, it alerted me to something happening at the very beginning of the move.