I found instructions for this in several places, and all of them are wrong.
Took me a couple hours but finally got the phased blinkers to work with rear DRLs and using both rear tail sections.
1 - Module 09 - Electronic Central (Security Code 31347)
2 - Adaptation
3 - Leuchte23SL HLC10
4 - Lichtfunktion F23 -- (Change to Blinken links Dunkelphase)
5 - Dimmwert EF23 -- (Change to 100)
6 - Dimming diection EF23 -- (Change to Maximize)
7 - Lichtfunktion G23 -- (Change to Blinken links Hellphase)
8 - Dimmwert GH23 -- (Change to 0)
9 - Dimming diection GH23 -- (Change to Minimize)
10 - Leuchte24SL HRA65
11 - Lichtfunktion F24 -- (Change to Blinken rechts Dunkelphase)
12 - Dimmwert EF24 -- (Change to 100)
13 - Dimming diection EF24 -- (Change to Maximize)
14 - Lichtfunktion G24 -- (Change to Blinken rechts Hellphase)
15 - Dimmwert GH24 -- (Change to 0)
16 - Dimming diection GH24 -- (Change to Minimize)
17 - Leuchte26NSL LA 72
18 - Lichtfunktion F26 -- (Change to Blinken links Dunkelphase)
19 - Dimmwert EF26 -- (Change to 100)
20 - Dimming diection EF26 -- (Change to Maximize)
21 - Lichtfunktion G26 -- (Change to Blinken links Hellphase)
22 - Dimmwert GH26 -- (Change to 0)
23 - Dimming diection GH26 -- (Change to Minimize)
24 - Leuchte27NSL RC6
25 - Lichtfunktion F27 -- (Change to Blinken rechts Dunkelphase)
26 - Dimmwert EF27 -- (Change to 100)
27 - Dimming diection EF27 -- (Change to Maximize)
28 - Lichtfunktion G27 -- (Change to Blinken rechts Hellphase)
29 - Dimmwert GH27 -- (Change to 0)
30 - Dimming diectionGH27 -- (Change to Minimize)
https://youtu.be/zHRsGKQCZeY