Export downloads everything as a file. Import loads a backup back in.
You already have lists here. How should this backup be applied?
What this list is sorted by when you open it. You can still change it temporarily from the list itself.
Which items this list shows when you open it. You can still change it temporarily from the list itself.
Portrait suits trading cards, square fits things like sprites or icons, landscape works for wider artwork.
Add fields like Set, Rarity, or a Link — they'll show up on every item in this list.
Every field always comes along — uncheck one to blank out its values instead of leaving it out entirely. Handy for something like a personal note you've filled in but don't want to share.