You can copy an existing conference so that you don't have to enter the same information again.  Just follow these steps:

• After logging in, go to your Planner Account.
   
• Look for Other Actions under Management.
   
• There you will see a link entitled Copy a Conference.
   
• After clicking on that link, you will be able to choose the conference you want to copy.
   
• You will be asked to enter the name and new start date.