some unit need ALT key to aim on the ground despite having an AOE attack.

[akinata]

it is the case for the dvar foreman and paladin marquis.
i remember a dev telling me it was like that for the foreman for balance purpose but using ALT allow you to aim at the ground anyway.
this is a very counter intuitive design choice.

 

[FerrokenFibrous]

More like it's because the Foreman's mortar is his default attack, so it would be a bit awkward having to juggle between pressing 1 and 3 if you wanna' move him then shoot somewhere else when no other unit is like that.

 

[akinata]

interesting thinking. but new players will still be confused about why they can't target ground with their mortar while there is a specific move button anyway.

 

[Sinsling]

Imo the moving being default is preferable even for alternate skills. It is so tedious to select a skill, figure out where I need to move, select move, go there and do the thing. I would rather be able to see where I can position myself, move there, then hold alt to target where I want without having to juggle which ability I have selected.