Good news. I dug up the patches that I downloaded way back
when (mentioned in the thread linked to above, which has a now
dead link for the code). They can be found here:
https://openacs.org/new-file-storage/one-file.tcl?file_id=218
Can we get this included OpenACS 4? Seems like a lot of
people want it.
I tried entering it as a feature request for the acs-subsite
package, but the SDM is being flaky.