Just a fyi on what I found investigating this.
Found an interesting pdf on the dsc units in the 4cyl and in the 6cyl E90s.
DSC units in the 6cyl e90s have adaptive cruise control functions and additional features: comfort stop, start assist and ECBA.
My 130i e87 appears to have the same or similar 6cyl DSC as it definitely has comfort stop, start assist and ECBA function in NCSexpert.
Unfortunately, my original prelci 2006 DSC does not have options for dynamic cruise (DCC?) in NCSexpert. But looking in NCSDummy, DCC functions are available in the updated DSCs. So the 6 cyl e81, e82, e87n e88 may have the DCC function in their DSC unit.
But since the e8x 1 series never had 544 as an option, the kombi is not designed for dynamic or adaptive cruise because it lacks the cruise speed display for it.
So the dynamic cruise option would be possible in the facelift 1 series DSC (as seen working in the e82) but it will lack the DCC functions in the kombi.