Unfortunately for you, yes. Look in the Ordering Guide from the topic that I will put below and you will see it as "Priority 1" and as far as I remember those "Priority 1" options are considered Individual by BMW.
https://g05.bimmerpost.com/forums/sh...35&postcount=1
@edit: the Extended one seems that is not, the Full Merino is a "Priority 1". Anyway, just check the Ordering Guide and you will see.