Emulators are meant for rapid testing.

There should be a tool that enables easy fine/grain control for importing and exporting data from the Firebase UI for Firestore, Storage, and Auth from the user interface.

Trying to manually modify data in the interface is fairly awful.

It would be nice to be able to mix and match different pre-made documents or collections to set up different types of environments.

The command line import/export is ok, but still fairly tedious and limiting in its setup.