I would like to see a feature that would make use of the ability of Glasswire to recognize excessive usage and have an option to message me that it is occurring (either sms message or facebook messenger would work) A mobile app would also be a good way to implement especially if you could issue a block traffic command remotely. We are on a satellite internet connection and every so often something goes haywire and we find that a machine has mysteriously burned through our monthly allocation.
We do have a feature you might like https://www.glasswire.com/userguide/#Usage_Tab. Go to the Usage tab and choose the small pull-down menu under “options” and you can set “usage alerts” that will warn you when you hit a certain data limit.