Dataprep Commit seems to add everything back into the current level, which is annoying if you’ve made changes. Datasmith has an option to not respawn deleted actors, but Dataprep doesn’t seem to have this?
Also, the result from the Dataprep Commit does not have the white balls on empty actors that the result from a straight Datasmith import has (which is preferrable actually, so I’d rather hope that when you drag a Datasmith scene into a level in the future the white balls will be hidden for it as well).