It would be very useful as well as natural that the transclusion functionality is enhanced to allow transclusion of particular sections, both by title and by number. For example, if a user wanted to transclude only the section titled "History" of the "Philosophy" article, s/he should be able to do:
`{{:Philosophy#History}}`
This would agree with the way we link to particular sections of a page, namely `[[Philosophy#History]]`.
Additionally, if the user wants to transclude the third section of the article, no matter the title, s/he should be able to do:
`{{:Philosophy#3}}`
This would also allow users to transclude the introduction of an article (which don't have a title) in a very natural way:
`{{:Philosophy#0}}`
This way of numbering sections would agree with the way the "edit section" functionality works. When editing the third section of an article, we're redirected to Philosophy?action=edit§ion=3, and if we change the 3 for 0, we edit the introduction.