Use of Organ Builder

  • Good evening,

    I have just discovered "Organ Builder Portable" software. As I begin to use it, I asked myself :

    1 - all the GrandOrgue ODF I can see here are they made with this software ?

    If "YES" answer :

    2 - How to insert combinations buttons under each manual ? (no 1-10 or so)

    3 - How to create and insert a cancellation button ("GC" ) ?

    I apologize in advance for my poor english, and eventually for the (perhaps) misplacement of this question.

    Thanks to all