Great thread and a tool with some mileage for me...

Say I create 50 different slots and these are done from some lists of standard slot sizes from different sheet metal suppliers. Its these guys who do cnc 'punching' where a slot is a standard tool.

What would be best way of organising a library of these 'objects'
(ideally by supplier) so they could be pulled into any drawing?

I presume using object libraries (e.g via max's customui script) might be the way to go. They seem to be externally referenced but I am not sure if I can create sub folders (by supplier) or search for these ¿