text: Title: Allow default format selections on import, export, and action screens
  Body: It would be useful to allow specifying a default format on the import and export screens as well as the actions. On some of the screens it will auto-select if you only have one option, but the Actions do not work that way. If you're always using a specific format (or usually even) it gets to be a lot of clicking going back to Yaml or Json or what have you from the menu.
  