Annotate with opening names, variants, ECOs (save to PGN files)

[Jonathan003]

I remember it was possible with Banksia to annotate pgn games with the opening name in the games, like this example:
1.d4 g6 2.e4 Bg7 3.Nc3 {B06: Modern: 3.Nc3} 3...b6 4.f4 Bb7 5.Nf3 *

But I can't remember how to do it?