I hope I can explain this correctly in how the door opens and to get it to opening the opposite way.

I would like to know if there is any way to get a door to open the opposite way then the orginal vanilla. Specificly right now is the "in_c_door_arched". If you are going to enter a room and are standing in front of the door looking at it with the latch on the left it will open inward which if I have it correctly this is a left to right opening door. So I am wondering if there is a way to make it a right to left opening door. So that if you rotate it 180 degrees thus making the latch on the right so that now as you enter the room it opens right to left.

It would be so much nicer to have doors open against walls rather then into the middle of the room or halls thus blocking your pathway. Yes I know if you build the room differently the doors will open inward against the wall but it would be nice for those times the room is build the opposite way so that the player won't get trapped opening and closing the door just to continue down the hall or entering the room

Another thought if this just a matter of animation reversal and if it is not that hard to do, could one of the animators do this for all the doors and gates.

I could be wrong but how the door are turning is not related to animation, but by it's position comparing to the center in nifscope.

Standard doors aren't animated at all. The engine rotates them about the Z axis by +/- 90 degrees when activated.

You could have a door open the opposite way (for french doors, as an example) by scripting the animation instead of allowing the engine to animate it. In this case, the door is actually an activator. You would have to handle all of the door stuff yourself, though. (handling locks & keys, sound effects, lockpicking, etc.)

As I mentioned somewhere else, the vanilla game has a bar door that opens vertically, and is handled by a script. It's somewhat simplistic, but it does the basics.