Add fade type selector to SpritesADF (like in Sprites)

Imho it's unfair that SpritesADF doesn't have a fade type selector (fade/grow) like in Sprites operator.
Is it possible to add that? Thank you.
Is it possible to add that? Thank you.
http://erbsen.untergrund.net/board3/
http://erbsen.untergrund.net/board3/viewtopic.php?f=55&t=1369