There is a default list of item types available for items created in Figshare. There are also non-default item types that can be added to your Figshare portal if you use Figshare for Institutions. Non-default item types are not configurable on a per-account basis. To add these non-default item types, please contact firstname.lastname@example.org.
The below list also indicates which item types are indexed by Google Scholar, Google Dataset Search, and Google Book Search.