Assign the following action to your models :
Code:
action moveObj()
{
   while(my)
   {
      while(my.skill2 < 100)
      {
         c_move(my,vector(my.skill1*time_step,0,0),nullvector,GLIDE);
	 my.skill2 += 5 * time_step;  // 5 = animation speed
	 ent_animate(my,"walk",my.skill2,ANM_CYCLE);
	 wait(1);
      }
      my.skill2 = 0;  // reset animation percentage
      wait(-0.1);
   }
}


You may edit different movement speed "skill1" to your
models in WED.