Happy to be on board with the beta testings...
I think at least 2 basic trays / toolboxes need to be created :
1. Corona materials toolbox (with along with emitter materials, SSS, combo materials, etc,).
2. Environment settings (HDRI skies, camera settings, sketchup's 2 point perspective camera match integration)
3. a possible future one could be batch rendering with time limit, plus DR network, and animation settings.