Hello Penrhos1920,
That LCD line format shows specifically the position of the relevant 'floating division expression pedal (the slider for the relevant floating division number on the 'Floating Divisions' large control panel), as opposed to any expression pedal that the organ might have natively for the division to which the floating division keyboard is currently routed.
See the 'Registration menu: floating divisions | Expression with floating divisions' section in the Hauptwerk user guide (pages 116-117 in the current v4.2.1 version) for how those floating division expression pedals work.