I think you misunderstood,
the thing im complaining about, or i suggest to do some opimization is not the fact that you have friendly fire, thats the funny part if you have to decide if those spell is worth the collateral damage.
Its the fact that its a bitte fiddly to select your target and therefore you can easily select the wrong target in my case the own party member.

So i dont want to disable FF i want to make it a decicion in that case not an accident.

For that reason i suggested the Ctrl+Click thing which is in line with the current combos since you have to click this to destroy "world objects" as they call them.

But anyways if Larian has a better idea to overcome this im fine with it.