Being a senior member, I can remember when LR used to sell an accessory sunglasses case (not a clip) that
only required the unscrewing of the hand grip above the door to attach it and then you put the hand hold back again, very neat and useful - offered full protection of your glasses and matched all the other plastics attached to the roof lining. I had one in the freelander1 I owned. 2020 Pangea Green 1st Edition D240 New Defender 110 is here and loving it
2018 Melting Silver Mini Countryman PHEV - soon to be replaced
2015MY Corris Grey SDv6 HSE Dynamic, the best car I have ever owned, totally reliable only a cou0le of rattles in 3 years, now no longer in my care
Also in my garage is a 1996 TDi300 Defender 90 County HT made into a fake CSW

the gear shop list it as a option, but does list a FL2 as one of them

The picture on there also looks likes it a little too small, for modern style sunglasses that don't fold completely flat