Thanks Bill
Hi John - to answer your questions :-
1) Apple lightning to USB adaptor plus USB to midi cable lead keyboard adaptor converter.
2) Hopefully straight out of the Ipad but operated from the KN7000.
3) Midi settings are at Initial as I have never used them before. Not sure how I would do a complete back-up of all my settings anyway...
Tha App - Galileo Organ by Yonac is absolutely fascinating and very wide ranging in it's facilities/options and if you have an Ipad it's very cheap to download at the moment.