In UDK I could disable lightmass when early in a level, placing objects, doing basic material and lighting work, etc. It was a simple checkbox in the World Properties.
How can I achieve the same result in U4? I don’t want to have to wait so long for builds when I don’t need the extra visual details yet.
Under the lightmass tab in World Settings I found “Force No Precomputed Lighting” which when checked seems to reduce the visual quality / speed things up, but I don’t feel like this is the right answer.
I tried to reduce “Indirect Lighting Quality” to 0 - but it only let me go down to .1, and then the lighting build failed when I tried.