well. indeed there's an easier way to let several units do exactly the same thing (means: using the same script) ;D
As i guess, the script Deathwish sent you, is written for the unit "man" as he not gives any variables from the exec command (don't care, sounds more complicated as it is).
So you can modifiy the sitdown.sqs. Open it with CHOFPSE (which you have installed now, i hope)
at the very top of this script, add this line:
_man = _this select 0
next step, read through the rest of script and replace every "man" in it with "_man" (without quotes of course
)
When done so far, save the script, leave the name as it is (sitdown.sqs)
Name your loons you want to make sit man1, man2, man3 and so on...
in theyr init line put:
[man1] exec "sitdown.sqs"
[man2] exec "sitdown.sqs"
...and so on...i bet you see the point
i hope it works all for you...good luck