My car is an ST1. I’d ideally like the lights to work as the cornering lights are supposed to, but I don’t know if they ever will. The description of the headlights called them “parking LEDs”. I’d settle for always on. I’ll have to do some research on Forscan/FoCCCus. I e never done any like that before.You can change some settings in Forscan/FoCCCus that might help. Here is a starting point for you: https://www.focusst.org/threads/st2-to-st3-headlight-swap.20277/page-3
Sounds like one of the settings will disable the corning lamps, so maybe some combination can get them working? Was your car an ST3? aka did it come with the cornering lights from Ford?