AvailableWebTemplates Key Format? - bernado

I'm attempting to setup a custom Publishing site definition.  I've
successfully created the site def and added it to the webtemp*.xml area,
setup the provisioning provider, etc.  Everything worked just great to get
started with basically copied code from BlankInternet and Publishing site
defs with just tweaks to the names and ID's where necessary.

So, my question is fairly simple, but,  simply can't find this information
anywhere (not the MOSS SDK, nowhere on MSDN, in the wild, etc).

The following format seems to block all subweb site defs from showing in the
available Site Templates in a Publishing Portal:

Property Key="AvailableWebTemplates" Value="*-CUSTOMBLANKINTERNET#2"

So, what format is needed to allow more than one site to be selected?

I've tried several combinations and delimiters, but all of them seemed to
result in all hidden=false sites being visible.  Not what I had in mind...
;-)

Thanks all,
B