Hi this is what I found with regards to the animation frames, for characters, animation key frames for animals is in the second picture. The system is completely different to that classic. So this is likely wrong or my best guess.
Additionally each script has a BYC file.It isn't clear as to what the BYC entails or what is needed. I can only assume this is the in game visual behavioral editor file that is created( Guessing here). It would seem that the engine pretty much takes care of everything, as you don't need to specify the animation frames in either the FPE ( only idle animation) or script. Just have to specify the behavior.
I am thinking here that the BYC file essentially tells engine what needs to be played if a condition in a script has been met. I tried to re import one of the default characters assign walk away script.
And I found you will need to manually edit the FPE file.
This what I found not sure if this will be helpful in any way. Hopefully it should point you in the right direction I hope. I am guessing a lot here and might be wrong.The new system hasn't been explained so I have no idea, what the BYC file is and how it is created, and it is my best guess here.
This is all the character animation behaviors. Technically I am sure if you follow the behaviors and keyed frames exactly, edit the FPE as required after importing you should be able to copy and paste without issue. Completely guessing here.
Win10 Pro 64bit----iCore7 4770k @ 3.5GHZ----AMD RX460 2gb----16gig ram