Is it possible with dynamic lighting enabled to disable it shining/bleeding into the cockpit but keep it for external views? 

For example when I'm parked at the ramp can I stop the lower panels being lit up by the ramp lights bleeding through the overhead?

Marc, did you mean to post this in the general FSLabs topic, as it's relating to the FSLabs plane? 

I dont understand your request because its realistic that ramp and apron-lights light up the lower panels.
If you see here perfectly the cockpit windows are fixed in a certain angle so light from above will shine through.

 

Light is defently lighting up the lower panels directly with this angle of the windows as its done in P3D. There is no light going through the overhead