Two ideas to help make supporting a little bit easier (and general warding)
If one or two of these could be added as ping options, or some other way to notify your team without having to type it in chat: "warded" "please ward"
It would make my job warding just that much easier if I could communicate either to my team. That way, I can easily and quickly communicate to my team that a certain area is warded so they can potentially avoid it and take our enemy laners unaware in a gank, or I can easily communicate to my team (in particular, my adc) that I'd like them to ward a certain spot before we engage or push the lane since my trinket might be down or my sightstone out of charges. If only one could be added, I'd prefer the first one ("warded") since I've taken to pinging when my trinket is on cooldown/when my sightstone is out of charges to atleast communicate "hey I can't ward right now."
We don't have voice communication and typing in chat can be risky, since I'd rather not ask "pls ward bush" since I don't want to be caught out of position because I'm typing or something.