Need to be able to ping a support's sightstone or trinket

This shit is getting out of control and it makes me very pissed off to get a support who has sightstone or yellow trinket and never fucking wards the map, its bad enough that they don't upgrade the trinket but not even using the wards is just insane.

since most of these monkeys are autofilled i'd like to be able to ping their sightstone and remind them they have 3 charges on it.