...
Term Pickers are fields that support Terms in the Administration section of OneList. Term Pickers will have the blue 
icon beside its label with a tooltip showing the user how to search or add a term.
...
Add a Term
To add a term, highlight the text you want to add as a term. Right-click on the highlighted text and select ‘Add' in the context-menu. This will open the 'New Term’ configuration form where you can add new translations.
...
...
Use a Term
To use a term, start typing a square bracket to search for existing terms that you can use in OneList.
...
To maintain terms, click the Administration menu in the top navigation bar and click on Terms. This should take you to /comms/Terms section where you can manage terms.
...
Term Preview
You can preview terms used in Task Categories and Task Details via OneList Configurator using the Language dropdown located at the top-right corner of the preview panel.
See How to use OneList Configurator for more details on OneList Configurator.
...