The "Snap to nearest surface" feature for changing the height of a unit is great for placeing vehicles and soldiers on buildings but it makes placing static objects like buildings a hassle.
Buildings often have a large fundament to compensate terrain slopes but this makes it in combination with the snapping feature nearly impossible to place structures and buildings correct via Zeus. The objects even seem to slip away while their height is changed.
It would be great to have the option to temporary disable the snapping or to have a more finer height control. This could maybe be solved by adding another object modifier (maybe Alt-Right) that will modify an objects height completely without snapping.