If the inspector dialog is not showing use the → menu item. To work with entities click on the Entities tab of dialog shown.
All external XML entities included via the DATA file or one
of its siblings are listed here. For this example I have run KXSLDbg
testdoc.xml (found in the
<KDE PREFIX>/share/apps/kxsldbg folder so that you can see some entities.
Clicking on a entity entry in the list shown will cause the cursor in the main window to move to the start of the file indicated.