It works!
I wrote this script:
_heli= _this select 0
_u1= _this select 1
_u2= _this select 2
_u3= _this select 3
_u4= _this select 4
_u5= _this select 5
_u6= _this select 6
_u7= _this select 7
_u8= _this select 8
_u9= _this select 9
u10= _this select 10
u11= _this select 11
u12= _this select 12
_u1 action ["eject", _heli]
~0.5
_u2 action ["eject", _heli]
~0.5
_u3 action ["eject", _heli]
~0.5
_u4 action ["eject", _heli]
~0.5
_u5 action ["eject", _heli]
~0.5
_u6 action ["eject", _heli]
~0.5
_u7 action ["eject", _heli]
~0.5
_u8 action ["eject", _heli]
~0.5
_u9 action ["eject", _heli]
~0.5
_u10 action ["eject", _heli]
~0.5
_u11 action ["eject", _heli]
~0.5
_u12 action ["eject", _heli]
exit
picture of my script in action:
[img removed]ejectpic1.jpg[/img]
thank you all for the help!