Here's their very nicely worded instructions.....but there is NOTHING that is there to create my party or to make a ressie.
Step 2: Create Your Party
When you begin to make a reservation, you’ll be prompted to create your party from your Family & Friends list.
Simply select the family and friends you’d like to include, then select “Continue”.
Don’t see someone in your travel party? Select “Add a Guest” to include them.
Note: You may need to make more than one Disney Park Pass reservation for your party depending on your admission type. Please make sure your party consists of Annual Passholders or theme park ticket holders.
Staying in a Disney Resort or other select hotel with a package that includes tickets? Everyone in your party must also