Make sure you have selected the correct navigation folder in the navigation tree (see image below). Only the leases associated with the selected navigation folder will show up in the fix leases card.
Filter the object list if you wish limit the amount of leases shown in the fix leases card (see image below). If you do not wish to do so, you can skip this step and go straight to step 4. For more information on how to filter the object list, see section 6.3.
Click "Fix leases" (see the first image below). When you do so, the fix leases card will open (see the second image below).