[yast-devel] DialogTree screen list manipulation

Hi folks, Is there any accepted way to dynamically change the listed screens when using a DialogTree? For example, on a button press that changes some state variable, I'd like my dialog tree to update itself to contain a subset of screens, etc. I can easily manipulate the contents of 'screens' passed to the DialogTree.ShowAndRun when someone navigates off the current screen, but changing the screen list _while on the screen_ doesn't behave well. Thanks in advance for any help, Karol