Getting Sub Periods:
Further sub-divisions can be found for most time lord systems in two different ways. You can double click on the period you are interested in to get further subdivisions, or you can right click to bring up the context menu:
This will bring up a new window with the subdivisons already listed:
The File and View menus (and popup menus) allow you to print the further subdivisions, view transits, export text or exit that window.