There is a bit of support for the coyote here. There was a somewhat basic app for the v2 version, and a user ( @maps524 ) remade it to be nicer and work with the v3 version. The software (coyotesocket) still needs some work, but it’s functional.
https://discuss.eroscripts.com/t/dg-labs-coyote-gui-now-supporting-coyote-v3
(Scroll down in the comments to find the new version, the author didn’t make a new thread)
Once you have that set up, you can connect to MultiFunPlayer and use normal funscripts to control the coyote. (Set up coyotesocket to use websocket, then add a buttplug.io connection in Multifunplayer for that same address and port.)
For the triphase and audio file estim, you’ll probably need something other than the coyote. The coyote is different from most power boxes and can’t do the same things. For more serious estim play like that, you probably want to get an et312bt or ask on milovana for suggestions.