Casting Auras from the skill menu with RS

Hi, I have seen that you can press RS in the skill screen to actually place the skill on a button. Its kinda not a bad idea, if it would work flawlessly, somehow when I tried, I ended up unequiping stuff or throwing away gems.

It would be great if we could just press RS to actually cast the spell, if it needs not targeting, like auras. Messing with this if you have 10+ auras, is just so frustrating. Shouldn't be really hard to make this little adjustment. This way would be opening skill menu, LT/RT or LB/RB to switch the skill and RS to activate it. And you would be done within seconds. We already have the RS outside of the menu to assing skills, this double functionality is just not necessary.