Forums Scripts & Popups $window().sbtext << can i set that

$window().sbtext gets the switchbar button text, but can i set it anywhere? Im assuming its setable as @blah can be @blah or Blah

ex:
/window @blah
/titlebar @blah window is currently proccessing debug

Now can i get that lot into the switchbar button as well ?
(without renaming the window to that)