Using EPE predominantly involves using 2 views - the Map Repositiory View and the Editor View.
When you first run EPE you should see the following screen appear:
The screen consists of views and editors.
The Map Repository View contains a preinstalled datasource with many
example pathways to explore. You can explore the database by expanding the datasource:
Double click on a map and it will
open in the editor window:
As well as the default views that open with EPE you can access other views as well.
Other views can be accessed from :
Window->Show View ->Other, for example
To export a datasource, for example to share, click
File->Export. More information is provided here.
Datasource contents
The datasource supplied with the EPE distribution contains example maps for several different notations, such as STKE, Kegg, Edinburgh Pathway Notation and Kitano, as well as EPE's own EMP notation for metabolic pathways.
Browsing the repository should give you ideas and templates for how to go about drawing your own maps. If you have the Properties view
enabled and right-clicking on a folder name you can see the number of maps inside. To access the properties view
Window->Show View->Other->Properties.