There are several nice features added to support SubWiki in Trac to categorize simliar wiki pages in hierarchical tree structure however linking to SubWiki from an arbitary Trac page can be really tedious if the level of depth become more than one.
If I have a SubWiki page Page/SubPage/SubSubPage/SubSubSubPage and it should be explicitly specified using full path to the SubWiki page.
[wiki:Page/SubPage/SubSubPage/SubSubSubPage "This is SubSubSubPage"]
I can use InterWiki and InterMapTxt to create shortcuts to SubWiki pages under Page/SubPage/SubSubPage/.
Define an entry in InterMapTxt
SubSubPage http://localhost/trac/wiki/Page/SubPage/SubSubPage/$1 # Categorized under SubSubPage
and then use it as shown below
[SubSubPage/SubSubSubPage "This is SubSubSubPage"]
It worked almost but a problem is that it does not create internal Trac database update which means Trac does not know the relationship between pages. i.e. BackLinksMacro can not display the back link to SubWiki page if InterWiki is used.
SubWiki macro support simliar to InterWiki using customizable SubMapTxt? (like InterMapTxt) will be of great use for those who using SubWiki intensively to categorize simliar wiki pages.
This macro can possibly add /SubSubPage handler which can be utilzed in maintab or navtab to create direct access to categorized SubWiki pages list from Trac menu. (Simliar to [HierWikiPlugin#SubWiki] mcaro)