How to make skin sit down.

[marcos02347]

Well, I'm doing a machinima using SAMP. I am editing the animations, one by one.

The thing is that one scene has a man being tortured, and he is sitting down. Okay, but there is a problem:
I know about two or three animations that can make a skin sit down. I know there is other animations, but only these can make the skin REALLY sit on a chair, for example (the other animations doesn't fit the chair. The skin sit down in front of the chair, but not upon the chair).

"On the other hand", I know there is a way to make all the sitting animations fit the chair (at least I guess it so, because I saw it in other machinimas), but I don't know how to do it.

The only ones I have edited:
SEAT_idle = ped.ifp
Seat_talk_01 = misc.ifp

How can I do it with more animations, please? Neither replacing a normal animation the skin fits the chair/sofa.
Since now: thanks for any help.