We've to confess... DemoDashboard is not perfect (yet).
Things that could be great additions:
We don't have an UI to configure each widget's settings. For example the PlaySoundWidget stores three different sounds that can be played back and if you want to modify any of them you will need to edit by hand the configuration file found at:
Sidebar's vertical scroll
Right now, there is no vertical scroll in the sidebar, so if you happen to add too many widgets, some of them won't never be visible as you can not scroll down. You can delete the DLL for the widgets you're not using so they aren't picked up and
shown on the sidebar.
You're very welcome to grab the source code and contribute features!