Yes, the matter is a bit complicated.
When i made my games i basically made one big animation with all animation sequences, and exported it as one file. And in Unity i imported it and splitted up the animation sequences by typing in the start and end values of the single animation sequences. This should still be possible. It’s too long ago though, over 10 years, i have forgotten the details. And it was in Unity 3 and 4. So i cannot really help you out anymore with indepth explanations. And i don’t even know if we talk about Unity here.
Nevertheless , here is a short video that shows the needed steps with Unity 5 and Blender 2.80. Means this should work the same way in Bforartists 🙂
https://www.youtube.com/watch?v=ysl0qYq5p9w
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