There seems to be lots of help in the FAQs for customizing Unity, even with dconf-editor and other tools. However, as an administrator of a large thin client installation, from time to time, there are special installations of educational software or of scripts for special uses that I have to make available to all users.
Take, for example, the application for Oaks Standardized Testing. To install it on a workstation, one only need to untar the distro and create a link of some kind to the start up script. Once done, how to I "push" that out to every user on the network (at their next login, obviously) so that it is available to them on the Unity Dash?