I was just working on the demo panel!  ^^     When finished, it will have IDL emitters and aurae around the lights, and I'll pack it into a zip.  That way you can see each material and how each prop's parameter characteristics are set.

     I'll include a P8/PP2010 version and a P9/PP2012 version, with a "readme" explaining what the differences are, and why they different.  P9 can use the P8 method, but P9 can get better results -results which P8 can't match- if you take advantage of P9's new options.

     Yes, a light panel set within a housing will cast light in a constrained pattern.  I'll have a monitor screen on the demo panel, and the monitor will be housed within a bezel.  I can add a ceiling with a countersunk light.

     I can make some mat room screenshots, with labeling to clarify what's going on.

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5