English Wikisource has recently acquired a new namespace called "Translation" (namespace number 114) as a result of bug #50007.
We intend to transclude pages from the Page namespace (ns:104) into this Translation namespace (ns:114) with the ProofreadPage extension, as is already done in the Main namespace (ns:0).
In the main namespace, this creates a tab at the top called "Source" between the standard "Page" and "Discussion" tabs, and floating page-number links on the left of the body of the text (each appears roughly alongside the piece of text being transcluded from the corresponding page). The source tab links to teh source master page in the Index namespace (ns:106) while each page number links to the source page in the Page namespace.
However, in the Translation namespace, neither the source tab nor the floating page numbers are appearing.
Example in the Translation namespace: http://en.wikisource.org/wiki/Translation:Daany_Beedxe
And the same transclusion in the main namespace: http://en.wikisource.org/wiki/Daany_Be%C3%A9dxe
I suspect something just needs to be updated with the 114 namespace number. A similar problem involving the dynamic page layout of transcluded works was resolved in this edit: http://en.wikisource.org/w/index.php?title=MediaWiki:PageNumbers.js&diff=4503024&oldid=4402308
For reference, the effect of this change in the Translation namespace can be seen on this page (which includes a non-default dynamic page layout): http://en.wikisource.org/wiki/Translation:Sleeping_Beauty