SSDT-PNLF UID99 and applbkl-name\applbkl-data

Hi and thanks for replying. Rehabman's kext on 10.11 always works. If I change UID, if I use basic SSDT-PNLF. So in the kext there is everything you need to activate the brightness control. What I would like to do is eliminate the kext rehabman and work with WEG. trying to activate the brightness first on 10.11 and maybe trying to activate it later on 10.13 where the brightness control never worked. To do this you need to I believe, work with UID 99 (0x63) and set custom values. But to do this there is nothing online that explains the values to use etc etc... I'm not a developer and with Xcode I'm 0, I just have to understand what values to set in these strings in device property IGPU applbkl-name applbkl-data and then test.