Listing all mints via/Gallery at flat price rather than auction

GM. Day 6 of minting with Manifold and want to create a gallery for listing/selling via/Manifold. My intent: list any mints at .1 eth. When I install the Gallery app, I’m given option of selecting one token for auction (rather than any/all at .1 eth). Is there any documentation/video that can help?
Grateful~