I'd love an option to change mouse buttons so that only the left would select targets and right turn the camera. Or some kind of compromise. Also it would be great if we could "invert" the click filter.

I sometimes accidentally target party members during fights because of pressing down the mouse button to turn the camera and then not moving the camera at all. I might even press it for 5 seconds but if someone is under the cursor after releasing the click it'll target them if the camera wasn't moved. On the flipside it's sometimes hard to target by clicking on the enemy if they are moving, as I'm anticipating their movement with moving the cursor to hit them. This results in the camera moving slightly and me not changing targets. This would be very useful in pvp to easier target specific enemies while there's a lot of movement.

Giving the option of inverting the click filter would also help on this front a bit. At the moment it works so that you have to press your "Target Filters" keybind to apply the filter. While pressing it you can't change your target to anything that isn't included by clicking or by using tab or any other way of targeting (except by clicking on the party list). Also this would give you the option to show names of enemies etc when pressing the button and hide them when not (the inverse of how it works currently).