VF4FT Change moves...

What's the deal with "changed moves"? Like Akira's A1 and A2 variations of 6P and B1-2 for K+G!G... I don't have the possibility to play FT, but i'm interested in that. How can two different moves have the same input? How does it work in FT? Can somebody explain it to me x_x

 

UP: Chief Gutti told me...

These moves were selectable by the vf net terminals, and they were saved onlo the account. Something like selecting supers in sf3. That was a great idea, I wonder why they decided to thow that away from vf5..

 

Because Akira doesn't need a 14f elbow at 6P.

 

But I'd like to have that lowcrushing knee back :<