Tonight, the Beta 12 brings the ability to store the current point of view and restore it later, as proposed in this thread.

@PtiNounours
Wouldn't have you check "shiny" on outside part of your walls?
By the way, nice model! [:)]

White marks or spots are not really a bug. It's a shininess effect that appears with the silk rendering used now at the best quality level. Miserably, many models (like curtains) use a very high shininess level when they shouldn't, that's why I'll add a Matt / Shiny choice on furniture in a coming version... or maybe I'm wrong to keep trying the silk rendering/Uber shader.