From Joomla! Documentation
This project page contains information about the users found in the Widget editors group. Widget editing is locked by default to all users not in this group.
Joomla! Documentation has 2. If the listed number of editors below varies from the automated number in the preceding sentence, please add the other widget editor to this page.
Members of this group...
Have the right, (
editwidgets) which allows for editing in the Widget namespace. If you want to modify or add a widget to Joomla! Documentation, please contact one of the users above by posting a message on their talk page.