Guild Wars 2

I found out today, playing my engineer, that I can use my Grenade Belt underwater and I don’t have to ground-place every ability (since they are all 5 ground placement abilities). And it’s so much nicer to have that option rather than having to place EVERY attack. Can this be added in the Options (I’m sure it’d be pretty easy) to enable the use of placement skills on your Target, rather than manual Placement?

I know there’s the “Ability goes off where Mouse Clicker is” but that one seems much less practical and annoying when I use it.