Nope... I have a feeling the only reason I thought it worked initially was because maybe the engine hadn't warmed up sufficiently yet to allow stop/start to become active. Once warm, although I get the 'not active' symbol in the MFD, the engine continues to shut down when i stop. Happens whether in D, S, or even if I shift to N before coming to a stop!
Back to the drawing board... Miro, what software do you use to do this?