Can't save edits on Data/Manage/Manage User Waypoints Window

[WalterT]

Clicking Data/Manage opens the Manage User Waypoints Window. The manual explains how to edit a cell on this database (page 45, section 11.4.1). Then it says "Clicking OK will save the change."  Unfortunately there is no "OK" button on the Manage User Waypoints window.  The only two buttons are "Export" and "Import".  Hence cell edits are not saved.   Where is the "OK" button?  Thanks.