Well, I can't be of help since I don't use Arranger Keyboards myself. But may I suggest that you try posting your question over at the General Arranger Forum. I think there will be better chance of other users of Arranger KBs noticing your post.
They browse here too from time to time but you may have to wait a bit longer to get a reply if you post Arranger related questions here.
good luck to you. I hope you find the answer.
-ED-
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A gentleman is one who never hurts anyone's feelings unintentionally.
- - - Oscar Wilde