Creates a VRay Light Select Element for each light in your scene.
Elements are named with prefix of the nameTag variable. You can change this variable if necessary for your pipeline. To do so you will need to open the script and modify the variable within the struct.
Default nameTag = "lgt_"
To install just drag the download .MZP file into the 3dsmax interface. You should get an Install dialog.
This tool will install a macroscript that can be accessed from the Customize User Interface dialog within 3dsmax.