This page is for more advanced concepts I run into, for "how to" and instructional pages.
Graphviz markup language is built into FedWiki. It permits building flow charts and diagrams. See Ward's Static Graphviz. I want to learn more.
David transporter permits importing web pages.
There are good tools for Maps on FedWiki. David has a page on Maps in Wiki.
David built a dynamic roster for Challenges of Policing but it seems not to work. I took it off the page but I'll keep it here for reference: here