Hello,
when playing with lightmass parameters, I frequently find it difficult to compare results from previous light builds (did I really improve results
on this object or not?). It would be nice to have the possibility of “saving” a light build, and have a command that allows to apply it temporarily,
so comparison is easy, or even have two viewports where we can compare two different light builds. Think of what photo editing programs typically
offer, i.e. the possibility of easily comparing before / after a certain filter application.
Ideally, one could have a set of previous light builds so that comparison can be made not only with the last previous build, but with any previously
saved build.