Hi Alan, I am not on the network, and this is on the Radarbox software.
In filters, advanced filters, and on the aircraft tab you can select:
B78*, A38*, B74* etc, and this allows you to view just these aircraft on the radarbox map.
You can do this on My flights quick filter, but only for one option, e.g. B78* it does not allow you to select multiple options, if you type in B78*,A38* all flights vanish.