If you are typing 2 or more capital letters and you do not see the pop-up box giving you the possibility to create or add an abbreviation, it is because it is not active in the settings.
Admins need to:
- Go to System
- Settings
- Under documents click on Editor
- Tick "Enable Abbreviation Autocomplete"
- Save
To learn more about this feature, check out How to create Abbreviations!