Assuming some of you out there know 3ds max… If I have a large amount of omnilights, and I need to change their intensities all at the same time (and I need to change them many times for testing), is there an easier way than selecting each individual light? I’ve heard of using a “light sister” to simultaneously change all lights in a group, but I have no idea how.
It’s in Tools / light lister
Alternatively, you can do it in code, if you know any Maxscript.
(with the lights you want to affect selected)
newVal =1
For i in selection do
(i.multiplier =newVal)
Where newVal is the set to the mulitplier you want to apply to the omni lights.
The light lister is probably your best bet 
Thanks! Light lister worked perfectly. Note to self: Don’t render 27 lights and transparent materials at once. I’ll be asleep by my computer.