Is it possible in this mod to toggle thirdperson and firstperson? The console commands I use are... well.. thitdperson to go to thirdperson mode and firstperson to go to firstperson mode. The reason I want to know is because I would like to know how well hidden I am as alien or human.

nope. thirdperson can be considered cheating since it lets you safely look around corners and whatnot.