Once you have turned a mashup on, you work with the mashup in its artifact page to add views, create apps or take snapshots. You also grant permissions to other users to run your mashup from its artifact age.

See Grant Permission to Run Mashables, Mashups and Apps, Add Views to Mashables and Mashups, Create a Basic App, Take, View or Delete Snapshots and Schedule Snapshots for more information on these tasks.