Better dynadmin
Source of the fix is https://github.com/jc7447/BetterDynAdmin. This is to capture the installation process and provide backup in case the tool disappears.
The pages generated by DynAdmin are actually not coming from a JSP or JHTML pages. The HTML you see is generated by hardcoded servlets. Each Nucleus component has assigned Admin servet, which is called when DynAdmin is trying to render the page.
The improvent here are user scripts - running inside Firefox or Chrome, utilizing infrastructure provided by Greasemonkey extension (FF) or Tampermonkey (Chrome).