Hello,
I have CH Products fighterstick USB. I've mapped more than once the trim to POV hat on the stick. Trouble is, I want to trim nose down by pushing UP and vice versa. It seems it follows the direction not the opposite. Any ideas? Thanks

You should be able to set the four trim commands to four separate buttons so reassigning them should be easy.

My key file looks like this:
SimTrimNoseDown 0 -1 -3 0 0x0 0
SimTrimRollRight 0 -1 -3 2 0x0 0
SimTrimNoseUp 0 -1 -3 4 0x0 0
SimTrimRollLeft 0 -1 -3 6 0x0 0

If I wanted to exchange nose up and down trim I would make it:
SimTrimNoseDown 0 -1 -3 4 0x0 0
SimTrimRollRight 0 -1 -3 2 0x0 0
SimTrimNoseUp 0 -1 -3 0 0x0 0
SimTrimRollLeft 0 -1 -3 6 0x0 0

Then loading that key file should apply the change. You should be able to do this simply in the game interface though. POV hat directions are 0-7 value. 0 is up, 1 is up-right, 2 is right, and so on around clockwise until 7 is up left.

I guess the value thing is repeated elsewhere, for 0 and 4, possibly snap views. Will check and report back.