Custom Player Moves in MK9

How do I re-map the player move keys into something that I like more?

I just want to casually play the game, without spending hours and hours memorizing what moves/combots each player has. I want to have some custom standards, for example, down-forward-punch would be a uniform custom standard for all players to fire a projectile, ect.

The answer to your question is that you simply CAN NOT re-map the button combos in Mortal Kombat in order to make the game easier. The reason being because the combos are a PART of the game itself, introducing the challenge of stringing the right button mashes together in order to beat the hardest of opponents. It is what makes the game playable and fun.