Making things extended bitvectors

Well i think thats what they are called... was wondering if you could make like affects the extended bit vectors and such too, and if so, how maybe?

If you look in the Smaug doc, it tells you how.
"Q: What are these extended bitvectors?"

Also there's a site out there explaining how to in Smaug.

I've looked through the docs that come with Smaug, as well as a few other things, only thing i could find was how to change channels to extended bitvectors. However i could use it as template, I would prolly miss alot of things pretaining to the affects.

Here's the site I was talking about.
http://www.auricmud.com/snippets/roomflags.html