Launch DC on playable DDs

[Lil Skies]

Hello everyone Does somebody know how to make DC launchers work on playable DD? (My friend playing SH3 since 2006 and he wants to play against DD with human control using LAN game)
In SH3 I have mods WO 3.3 and WSM 3.1 IJN installed. Also I have S3D and I tried to change one of the torpedo parameters by editing torpedo.sim file, but I can't add "detonate_depth" parameter from amun_bomb cause the programm doesn't allow this. Another thing I tried was to make decoy launcher drop depth charges instead decoys, but I haven't found any files linked to decoys, and I don't know how to make imitation of dc on DD..
If anyone knows how to make it work with any ways - please, tell about it. Maybe there is a way to make gui for it(but I don't know how) , or change something what already exist..