Lemme rephrase what i'm trying to do.. it will make a little more sense.
Basically we have a character with 8 animations. each animation has 8 rotations per animation (so 8 x 5 frames). We render that out as a tilemap from our 3D app so that its a little easier to deal with. We then bring that in as a sprite sheet to the collection, which is also super clear because it categorizes them into a group. The problem comes in at the animation creation time. Its not that it doesn't work or anything, its just a little time consuming currently since we are keeping everything in single sets of images. So what i was doing, by hand, was going into the collection and for each direction renaming that portion of animation to say attack_45/1, attack_45/2, etc. This then allows me to go into the animation editor and autofill the animations for each direction vs. manually adding each one from a rather long (or potentially long) list.
So what I was hoping for was to be able to select x number of sprites, rename them as i listed above so that the still follow the convention you've set out (which btw works really well) and allows us to create groups of anims for easier animation setup.
I'm hoping that makes more sense. We've also rendered out all the frames individually and brought those in which also works but it creates an unwieldily sprite list vs. the sprite sheets which group them into subitems.
Alternatively if there's a way to say i want this range of sprites in this animation then that would be even simpler. But there's no way that i've found to group select sprites in the sprite selector when creating animations (like you can in the sprite sheet editor). Maybe i'm just missing something in our setup? Its likely.
Appreciate the help! Look forward to hearing your feedback.
Cheers