Like many of user of the last version of 3Dsmax, I was frustrated by the new layer manager…
I scripted two little add-ons, I thought it might be useful ^^
– Delete unused layer(s) : allows, as its name suggests deleting unused (or empty) layers
– Delete Hierarchy : delete the selected layers with all their children (layers or objects)
For use them, drag&drop the mcr into your viewport and customise your Quad, add them into « LayerExplorer Quad » or « SceneExplorer Quad », you will find them in the category « Scene Explorer ».
See yaaa ^^