You can restore just a single database table for the training groups in the event of an accidental deletion of a training item or group.

The tables are:

TRNGRP.BTR will restore just the groups in the training program setup/module

TRNITEM.BTR Will restore just the training itmes in the training program setup/module

CREWGRP.BTR will restore the groups assigned to crew in the personnel records

CREWITEM.BTR Will restore the training items assigned to crew in the personnel records

If a group was deleted, restore the TRNGRP.BTR ONLY and the groups will re-establish all linking with the items.

If the training items are not relinked the TRNITEM.BTR, CREWGRP.BTR, and CREWITEM.BTR files will also need to be restored.

Please keep in mind, if you restore only a subset of files and the data does not return there may be additional files that need replaced due to the linking and configuration on the backend of what specifically was deleted.