In case you are working with slide numbers on your agenda, you will need one more step:
Before finalizing your file update slide numbers by running <update divider slides> again
On the ribbon menu, press <Agenda Master> to open the menu
The menu's main elements are the input boxes in the top row and a large listbox, where the agenda will display.
For adding agenda items to the listbox' agenda:
Repeat this for every agenda item.
Now that you have populated the listbox with the agenda items, you can organize it using the arrow cross (1).
You might want to make edits to an Agenda Item or to delete it altogether:
1. Updating items
2. Deleting items
Click <Apply, close and save> on the Agenda Master Menu.
... or ...
... you can use the ribbon menu:
Clicking <Update Divider Slides> creates the divider slides (as there were not any before)
Place the divider slides manually where you need them, i.e. typically between the chapters of your presentation
Press <Update Divider Slides> again before printing or saving
This is imporant for retrieving the accurate slide number.
If you are using slide numbers in your layout, you must not forget to run the update routine after making changes to the number of slides or their order.
If you do not really require slide number, it is a safer and more convenient choice not to use them in your agenda layout.