some more testing has revealed that using the Manageability Network Defense Tool from the Manageability Developer Tool Kit v0.6.0937.2 instead of the Manageability Commander Tool *does* allows me to engage disk redirection!
Start the Manageability Terminal Tool from the Control tab of the Manageability Network Defense Tool by clicking on the Control Console button. This instance of the Terminal Tool is able to start disk redirection by clicking on the "Redirect Active" item that now is no longer greyed out.
I am baffled as to why starting the same Manageability Terminal Tool from within the Manageability Network Defense Tool or from within the Manageability Commander Tool results in the Terminal Tool behaving differently. Is this by design?
TIA for your reactions.