Allow Page Toggle in Bank Change Mode

Add buttons to Bank Change Mode (BCM) to allow toggling bank.

Many ways to do this but here’s an idea (for an MC6 config):

  • Clicking D button selects Page 1 (and changes label to indicate selection)
  • Clicking F button selects Page 2 (and changes label to indicate selection)
  • Upon entry to BCM indicate on D or F label currently selected page
  • Clicking B button goes to selected page (on the selected Bank)

Bonus Points:

  • Clicking E button cancels out without and Page (or Bank) change.