1. Usually, 3d engines allow you to import animations from other FBX files, rather than having all animations in one big FBX file. Can Firefly import multiple animations from different files too? it's a pain to organize everything at the beginning with the inability of editing it later, you'd have the frame range of all the other animations just to fit it within a group.
2. Pose Morphs, Blend Shapes, etc... are a feature that most 3d engines have, that are used for lip syncing and "transformations" of the mesh, depending on a percentage. Can those be imported and manipulated through Firefly?
3. Can 2d Firefly images have a blending coefficient/be transparent? text does, but I can't find any option for images. It's a pain if I want to add fade-in or fade-out transitions, because it means I would need to make separate transparent sprites just to achieve this, extending the file size of the application.
4. Can you attach models to bones?. Picking a weapon or a key from the ground to then use it for example.