Player tool for quick cast buffs

[One_With_Nature]

I was thinking it would be cool to reduce casting time for buffs that take forever, if you could like store certain spells like in spell notes and assign it to a player tool, then click on a person and cast all those buffs in one go. But maybe to balance it make it so it has to be channelled for like 3 rounds and if you get hit during those three rounds you get immediately subdued or if its a hostile npc you go immediately to -1 hp so it can't be abused. Just a quality of life suggestion.