Hello warmanw! Nice to have you here 😃
I suggest you have a look at the cheat sheet: Spine: Cheat Sheet
Especially the keying section:
K
Key all changed
L
Key active transform
CTRL+L
Key all transforms on selection
CTRL+SHIFT+L
Key all keyed dopesheet items (Key current pose)
I usually press SPACE
to deselect everything so that I can see the whole dopesheet, then press CTRL+SHIFT+L
to create keys on all the currently visible timelines (that is to say, all timelines that have a property keyed!) copy them, undo the creation of keys, then paste in a new animation 😃