[Zope] FTP/WebDAV editing in version (proposed interface)

I would really love to edit zope objects via FTP or WebDAV within the version. I know that it is possible to hack z2.py this way, but this is unelegant and troublesome on updates. And ... there is in Zope similar problem with perfect solution: changing URLs and VirtualHostMonster. And one could do almost the same. Would be really nice if editing ftp://my.zope.site:8021/_Version_/SomeVersionName/some/document or even ftp://my.zope.site:8021/SomeVersionName/some/document changed /some/document withing version SomeVersionName (created on the top Zope level). Similarly, for the versions on the lower levels: ftp://my.zope/site:8021/somedir/SomeVersionName/some/document Would it be hard to be implemented?