In Administration > Manage Data Options > Manage Tags you can create tag letters.
•Tag letters appear in the tag/source drop-down lists in data entry pages.
•Tags let you to isolate and identify the originating source of the information you enter in a dataset/unit for an adjustment.
Description and Tag
The description is user-defined and can be any combination of alpha and numeric characters, including spaces, up to 60 characters.
•The description cannot be edited because it will change globally in the system.
•The tag can be deleted and re-added with a new description, if desired.
•The tag can be any single letter of the alphabet and it can be modified.