This command, available by right-clicking the Delete button on the FF&E Worksheet screen, allows you to restore a deleted object usage in a room. 

If you are using the Undelete command immediately, after accidentally deleting a  Worksheet entry, the command will be simple to use and you can simply review the "Procedure" further below. The following discussion may apply if you are undeleting something where substantial project changes occurred afterward.

Limitations

Since subsequent changes to the database (after the Worksheet usage was deleted) may have changed data from what was there at the time of the deletion, there are some limitations on what this command can do:

• This option is available only until you run the File Cleanup utility, which purges all deleted records and refreshes the data indexes. 
• This is only available for usages that were deleted under FF&EZ version 4.03.30 or later, since the ability to mark a "set" of database items as part of a deletion was introduced at that time. Only eligible usages will appear in the list of potential usages to restore.
• You can only use the Undelete command on the FF&E Worksheet to restore an object usage that was deleted using the Delete command on this screen. Usages deleted by the deletion of a "parent" (i.e., a room or area) must be restore from those screens. 
• If a Worksheet entry's original room or object was deleted from the Room or Object List screen separately, it won't appear on the list of usages you can restore. 
• The restoration process uses the original relationships to the rooms, objects and specs that were "parents" to the room usage. If rooms, objects or specifications were changed after the deletion will appear in their current form (including changed Room IDs, Object IDs and Spec IDs). This may not be what you want, so it's important to review the restored object usages carefully. 
• If an original room or object was replaced with a new room or object that used the same ID, the deleted usage does not "point" to the new version. The undelete process only checks the original relationships. If in doubt, use the Add command to create a new usage instead.
• We recommend that you restore an object usage as soon as possible after an accidental deletion, to avoid the problems associated with the above points. Waiting weeks and months increases the need to carefully review the results, especially if more than one person is working on a project.

Procedure

1. Display the FF&E Worksheet screen.
2. Right-click on the Delete button.
3. The "Restore Deleted Object Usage" pop-up will appear, showing usages that are eligible to be restored.
4. Click on the desired object to enable the other buttons on the screen.
5. If you are restoring a object that was subsequently replaced by the same object in the same location, it  will be listed with a "YES" mark in the "Exists" column. This specific object/room usage cannot be restored, since it already exists in the Worksheet.
6. Click on the Restore button. This will restore the object usage to the original room. .

*Databases like FF&EZ use a hidden "key" (a unique numeric ID) to tie the pieces of the data together. This is why you can change how a Vendor ID is spelled and have it instantly change everywhere else in the system—the "key" that points to the vendor never changes unless you select a different vendor.