When you select __ Step 3. Creating Dahdi Device Configurations __, you'll be presented with an initial menu that reminding you to print out the Checking for Dahdi Devices information page on your card(s) as it will be needed in this step.

It also asks you to note the last Span listed. You will need this in case of multi span cards so you know when to stop configuring as this module relies on the user (you) to know that. Probably in future versions, it'll be smart enough to stop.
__ Configure First Device: __ This button opens up the configuration for Span #1
__ Checking for Dahdi Devices: __ This link returns you to the checking for Dahdi devices in case you forgot to print out the info page
__ Return to Dahdi HW Configuration Main Menu: __ Does exactly as it reads
The Configure First Device button is explained in the link: [Configure First Device]