The game Guild Wars 2 has two modes. Action camera mode and then the traditional MMORPG mode. In order to play in one mode, you must be willing to sacrifice something that the other provides, unless you constantly press the toggle key. Luckily for me, I got a Logitech mouse with LUA script support, so I got to fool around with a concept of merging them together.
Inside of traditional MMORPG controls, holding down right click on the mouse button allows for the player to pan their view and nothing more. However, what if this camera pan function was turned into an action camera? In an action camera, left clicking is turned into a basic attack and right clicking is turned into a target button. Having another keybinding for a basic attack is redundant, so it is possible to change action camera mode controls into a traditional MMORPG form. This means that the two modes might work well merged together!

The result should be like the .gif above. A fast method of swapping between the two modes! While my script in GW2 has issues, due to the script not being able to interact with the User Interface, the fast swapping felt pretty good. Perhaps this would be worth experimenting with as an optional control scheme?