These don't work, I get an Unknown parameter error:
vec_set(testvec, you.aiDumbBiped01_force_vec.x);
vec_set(testvec, you.aiDumbBiped01_force_vec);

This is ok, but not what I want:
vec_set(testvec, aiDumbBiped01_force_vec.x);

All the entities have the same Action. How can I get the aiDumbBiped01_force_vec vector from the you pointer?

define _Forcex, skill99;
define _Forcey, skill98;
define _Forcez, skill97;

vec_set (you._Forcex, aiDumbBiped01_force_vec.x);

vec_set (testvec.x, you._Forcex);

but this is just one way to do it..

Thanks