Thankyou for your comments

After a little experimentation I think I've solved the problem, hopefully you can conform this.

I found that altering the Transpose setting changed the chords on the lead sheet as well and completely messed up the entry of chord. I think this works when your starting with a piece in concert ptch and want to transpose fro the Sax. What I'm doing is the opposite. Im starting with the chords as written fro the sax and then from thi sI want BIAB to play the concert stuff.

Anyway, what I did was too set the key signature as for the sax, then when all this was done I changed the Key signature to the equivalent concert pitch. So that if the Tenor Sax Chart was in E the concert pitch would be D. I used the option to 'Not Change the Leadsheet Chords'. This seems to work. I can modify chords ok and I assume the piano and Base etc will play in concert.

Am I missing something.

regards

Malcolm