>>> I would like to make 15 of them blues in A, 15 in G, etc. Is there an easy way to do this?

Yes.

1. - Prefs button-Transpose and then set "When song is loaded, transpose to __ A ____"
- then press <Shift F8> to load next song, and <F2> to save the song.

2. - repear the <Shift F8> and <F2> for as many songs as you want to do. Of course remember to turn that transpose feature off when you're done.
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ALTERNATIVE METHOD
(an alternative to step #1, is to just (from the main screen) type tra<enter>
That 'tr' transposes to the key that follows, which in this example is 'a'
trbbm<enter> would transpose to Bbm
1. Load Next Song Shift F8
2. Transpose to 'A' tra <ENTER
3. Save F2

Have Fun!
Peter Gannon
PG Music Inc.