LightUtilities
"A whole bunch of useful utilities relating to lights - including a lightboy type floater - utilities for turning your scene lights on and off en masse - removing unnecesary attenuation range clutter - and a viewer to let you view the influence of a particular light.
version 2.91 Added an update for after the delete lights function is called. Cleaned the code a bit in isolate lights and added an unhide to lights so hidden lights would still get isolated properly."
For a max 5 - 4.2 version of this script - please download bspack_r4_r5_v031.zip. Use the original bspack_r42.zip if you want only max 4.2 compatibility.
The only major differences between script packages are slight version compatibility issues - there are no new scripts added between the 3 packages.