Hi, @Upinit
Thank you for posting in Microsoft Q&A forum.
The customsettings.ini is processed BEFORE we choose our tasksequence. So we can't just get our settings in it.
What we can do is create another one, like customsettings-44.ini file and add 1 more step in our tasksequence to process customsettings-%TASKSEQUENCEID%.ini file.
You may check Anton Romanyuk's reply in below thread to see if it helps:
https://social.technet.microsoft.com/Forums/en-US/d5ee588f-4e8d-4412-8f3e-77d39518c757/mdt-2013-6384431-tasksequence-by-tasksequenceid-is-not-working?forum=mdt
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