Mouseover targeting of models can be trying. It's usually better to mouseover stationary hud elements. For NPCs in duties, there are a couple things you can do.

A) Set the NPC as your focus target. Then you can mouseover the focus target hud element.
B) If the enemy is targeting the NPC, mouseover the target of target hud element.

That way, the hud elements are always in the same place, which will make it easier to move your mouse to them once you find it.



As for camera controls, you can bind keyboard zooms here:
/keybind
Movement tab
(Zoom Camera In / Previous Page) and (Zoom Camera Out / Next Page)

You can also make it so mouse wheel zoom requires a modifier key by checking the settings here:
/characterconfig
Control Settings
Mouse tab
Mouse Wheel Settings