The Versions Page controls Named Version management.  Here the user can create Named Versions based on the changesets in an iModel.

[Note: that Named Versions are not required to view an iModel, but are used in other applications.]

The Named Version tab allows the user to name & add a description for a Named Version as well as open the iModel at that point in time.

The Changes tab allows the user to select a specific changeset and create a Named Version by selecting the icon on the far right side of the interface.

[Note: Since changesets are typically processed in "groups" it is best to look for a changeset containing the term "Finalization changes" when creating a Named Version.]