Ask "Save or Discard edits" to user that has manipulated a Glamour Text or Smalltalk code presentation

If i show a

• Text presentation or a
• Smalltalk code presentation

in a Glamour browser, can i make sure that the user does not inadvertently loose her/his edits by asking a "Save or Discard edits" dialog when the user leaves this presentation?

Unfortunately, this is not possible at this point in time.