In the Manage Signups editing page - see Figure 2 - you can perform three actions:
manually add a registration
edit/modify existing registrations
delete existing registrations
Figure 2
Add a Registration
Click on the Add a new signup icon [].
Fill out the Add Signup form.
Click on the Save & Close button [].
Edit/Modify Existing Registrations
Put a check mark into the box for the registration record (row) that you want to edit and click on the Edit highlighted signup icon []. See Figure 2 above.
Edit the information on the Edit Signup form.
Click on the Save & Close button [].
Delete Existing Registrations
Put a check mark into the box for the registration record(s) (rows) that you want to delete and click on the Delete highlighted signup(s) icon []. See Figure 2 above.
Confirm that you wish to delete the selected registration record(s).