When you hover the cursor over a Vocabulary element, Hover Help provides
information about that element, as illustrated:
When you add Datasources and document mapping, details about the
selected element in each additional mapping can display in the Hover Help, as
illustrated showing the details of the XML/JSON mapping option and the EDC Datasource
property mapping:
You can control whether the Hover Help displays the defined Datasources
and document mapping for the selected element:
On the currently active menu/toolbar, the Hide
Vocabulary Details button displays a minus sign: When you click it, the Hover Help will show only Basic Properties.
Then, when you want Hover Help to display details about defined
Datasources and document mapping for the selected element, click the Show Vocabulary Details button.
Note: If you have not defined any Datasources or document mappings for the
selected element, the Show/Hide option has no effect.