Hi everyone ,i created my own character with a custom rig and now i have to make all the necessary animations from scratch and i have 2 problems :

1) to be used in UDK ,a character animation must be on the X=0 Z=0
but i work with footsteps in 3ds max and when i want to move the character to center axis ,the foots stay stucked in places :/
how can i correct that ??

2)i want to make the correct animations for different weapons (something like that) :
Run_Fwd_Pst | Run Fwd_Stngr
Idle_Pst | Idle_Stngr
in some animations ,the legs positions change ,on others it's the upper body one ,my question is ,
How can i copy/paste only some bones positions between different Files/Bipeds.