Per-user namespace settings?

[Along-Hesitation]

Hey all -

I was wondering if there's a way for me to set namespaces on a per-user basis. We're currently running Roundcube 1.4.9, and we've got this one user who's struggling to use it, primarily because he's using the MH mail format for his emails. There's a way to point Roundcube to our IMAP server so that it picks it up just like any other IMAP client, but I have to do so by editing namespaces on a per-user basis. Does anyone know how I might do this in 1.4.9?

Thanks!

[Along-Hesitation]

This topic more-or-less answers my question:

https://www.roundcubeforum.net/index.php?topic=22897.0