Add an item ADE-XL results tab (when right clicking on a test result)

Hello,

I have this scenario: in ADE-XL, after I load an old result to active, if I select the results tab and right click on a result, I have a nice menu with many options.

I would like to add an item to this menu. From what I read on this forum, I added this code to menus/spectre.menus

(sevAddMenuItemLists                                                                                          
    (lambda (session name)
        (case name
              ("&Results" list( (list "TestItem" ?disable nil ?form t ?callback "(testfunc session)") ) )
        );case
    ) ; lambda
) ; sevAddMenuItemLists
(procedure (testfunc s) (println (sprintf nil "Simdir is %s" s->axlCurrentDataDir)) )

but, when I right click, I get this message in CIW:

ERROR (ADEXL-2822): Invalid menu list structure "(false false)" provided.
Menu items must be specified as a list of ("menu name" "callback" {"true", "false"}), where the last argument specifies whether the item is disabled.
For submenus, replace the callback string with a sublist of menu items.

and nothing gets printed

What is the correct way to achieve this? I need to be able to access the "session" variable inside my callback

Best regards,

Patrik