Hi,
For those who are interested in the Cargo extension, I just released a
two-page "quick reference"/"cheat sheet" that covers the functionality
of
Cargo, as well as that of the extensions Semantic Forms, External Data and
ParserFunctions, and a little bit of core MediaWiki. It's available in both
PDF and PNG versions. You can find links to it here:
https://www.mediawiki.org/wiki/Extension:Cargo/Other_documentation
-Yaron