The original user interface displays the next page after inserting 10 or a multiple of 10 items. The actual limit is 100 pets and 100 mounts. However, due to a small bug, the original UI only displays the next page up to page 9 (90 pets and 90 mounts).
PartnerFix fixes this bug, allowing you to use all 100 slots (beyond this limit, the entire system would need to be expanded by GF/RW).
