I'm glad you're finding it useful!
If you're a subscriber, you can go here: https://line-of-action.com/playlists and choose the button "create new playlist"
You'll have to pick what kind of playlist - animals, humans, etc.
It *should* be fairly explanatory from there, choose the "add more images" button and find the images you want to put on the list. You can then drag your chosen images around if you want them in a certain order.
I agree we need more help content. I'll try for that with the new version; little point in creating it now that I'm about to replace things. :)