Sentry wrote on Jan 23^rd, 2017 at 3:02pm:

I've un-installed and installed the airplane several times now, and allways end up with the same problem. I can't understand how the entry to the cfg can change the keymapping?

The 707 comes with a panel_CIVA.cfg. Have you tried using that, to see if affects the shift keys, or are you just adding the SimuFly CIVA INS to the 707's default panel.cfg?