Can you hack the mxdirectory to make the same way as in xhld module.

This module judges its number by tale of directory's name.

modules/mxdirectory0 - treated as No.0 module of mxdirectory
modules/xhld1 - treated as No.1 module of mxdirectory
modules/h2 - treated as No.2 module of mxdirectory

so we can have X number of mxdirectory within the same site.

Though I don't know mxdirectory well, it is not easy to implement Duplicatable V2 into conventional modules.

http://xoops.peak.ne.jp/md/d3forum/index.php?post_id=1500

This is the text how to implement D2.
Request it to the original author with this document.

However, I recommend D3 than D2