Note: Divisions are built-in if your discipline is set to Hunter Jumper, you won't see the Divisions menu item if your discipline is Hunter Jumper. They will be pre-configured as Hunter, Jumper, Equitation, Medal, and Breeding.
Division is a term that means different things in different disciplines and needs to be clarified a bit as it relates to OrgPro. OrgPro uses the term "Division" the same way that USEF uses it, as a discipline category rather than as a specific type of class. For example in the Hunter Jumper discipline the "Divisions" are Hunter, Jumper, Equitation, Medal, and Breeding. Associated with the Hunter division are Sections such as "Green Working Hunter" and "Regular Working Hunter". What a lot of people in the Hunter Jumper world would think of as Divisions are called Sections in OrgPro.
When you select Divisions from the Data menu the following dialog box is displayed...
This is basically a list editor. What you need to do is build the list of Divisions as appropriate for the Breed/Discipline that your organization is sanctioning shows for.
Something similar to this is what your Divisions might look like when you are done.
The next items you need to setup are your Sections.