In C3D 2011, when you edit points in Panorama, the program will not save your edits unless you select a separate cell after you complete the edit. If you simply click the green check mark, the edits are not saved.
The program will often de-select a cell after you select it. This can be very annoying.
When you create a new description key, after the name is edited, it kicks you out of the edit field then re-sorts the keys.