As a National Federation member, you can reject your Athlete's Event choices. 

Step 1: Go to https://invitation.fei.org and login with your FEI ID number and password.

Step 2: In the top menu bar, click on Invitation System.

Step 3: Select the week for which you need to manage your Athlete's choices.

Step 4: Scroll down to the Athlete who's choices you would like to ignore. Click on the cross button on the left hand side :

The ignored wish list now appears in light pink in the main list : 

If you need to undo this action, click on the cross symbol again to un-ignore the Athlete's wishlist  :

It is possible to filter the main list of Athletes to see the ignored wishlists by using the Filters feature.