line 30 and 31 of Scene_Battle 1
it says
@actor_command_window.y = 160
change the 160 to a height you like and than go to Scene_Battle 3 line 81 and change
@actor_command_window.x = @actor_index * 160
to a number you like the @actor_index * 160 means it'll add another 160 to the x for each member so to keep it in one spot deleted the @actor_index *