Here is a few screen dumps for Armored³ that describes the propagation editor.
The tab areas are live, so you can navigate through the different screens by clicking on the tabs.

In this second tab you will have the opportunity to specify a source for your propagation. A source can either be an existing essbase server or a security dump file. The source specifies the applications, databases and such that you wish to either alter or propagate to a destination server.