I would have a lot more fun with this game if there was an easy way to aim at a target. Switching to view 4 and tediously pressing shift left/right trying to get the angle line to turn into a sliver is the least fun part of the game. On the other hand setting inclination and power is a lot of fun.
If you could just target-click a spot on the map and make your weapon immediately point towards it, while leaving inclination/power completely manual, it would be much smoother and more fun to play in my opinion.
If this were an option I would always turn it on. Trying to get the angle lined up in 3d is just a pain.