Getting closer! Here's what I've setup...
default controls set to 'no'
keyboard (on up arrow pressed) player simulate platform pressing jump
keyboard (right arrow is down) player simulate platform pressing right
player set platform acceleration to 1000
player set platform vector X to 1000
now the only problem I have is that multiple up+right inputs increases the distance traveled (effectively repeating the vector x action, i'm guessing). Is there a way to limit this, to where there is only one instance of up+right allowed until player has reached the ground again?