Following http://drupal.org/node/909346#comment-3692292 discussion, I try to describe here the feature needed:
- create a new panel page
- give it a path; mine has parameter, so it's a kind of "test/%tnid" (different from "node/[/the-rest]")
- choose a flexible layout with no title
- no content needed for this testcase
- click on menu and set normal menu item titled "test" on Primary links
- save then navigate to menu form for Primary links
- try to update test menu item by setting "Enable node translation" --> it's ignored due the path or the message "'Node translation can be enabled only for node paths" pops up if patch http://drupal.org/node/967552 is installed

The feature requested is to support the translation of this kind of menù.
TIA