group create  &
 group_name = .Xiaomi_pro_II.GROUP_1  &
 objects_in_group = .Xiaomi_pro_II.testrig.tri_rear_single_vertical_force  &
 expand_groups = no  &
 expr_active = 1
!
group create  &
 group_name = .Xiaomi_pro_II.GROUP_2  &
 objects_in_group = .Xiaomi_pro_II.testrig.rear_left_vertical_force,.Xiaomi_pro_II.testrig.rear_right_vertical_force  &
 expand_groups = no  &
 expr_active = 0
 
 constraint create primitive_joint perpendicular i_part_name = .Xiaomi_pro_II.Deck.ges_chassis j_part_name = .Xiaomi_pro_II.testrig.ges_gyro loc=0,0,0 ori=0,90,0 jprim_name = antiroll