I don't think it's possible to edit the bone animations without the blend file.
Exporting to glb is like zipping textures, bones and objects together.
For now I will keep the blend files for my models but I could help with a tutorial of very basic animations from parented bones once I get more time.
Developing my game Depths of Insanity 3 takes up most of my free time 😅
Mord characters & other packs will be uploaded in a near future 😊
Do you need anything in particular, I might be able to make models on demand as well in this style (no promises).
Thanks for your support ❤️