I don't know if FL Leon Cupra has it standard , as I must confess not to have looked at what the set up is on the 2019 FL Leon Cupra my older daughter has, but surely SEAT has managed to integrate a sunglasses storage area into the overhead area in amongst the light switches and movement sensors, Skoda managed to do that even on Fabia, but VW only did that on the Golf and the Golf overhead thing is too wide for VW Polo 6C which was what I was trying to fit it into - so I just ended up getting the older Golf etc grab handle type version, unfortunately the one with screws, so I needed to remove the spring clips from the body side holes and fit it using ball bungs - a type of cavity wall fixing from the 1970's!
Then I got round to working out
how to fit one to my 2011 Audi S4 - virtually minutes for posting a "call for
help" on the Audi Sport forum, I discovered that that car came from the factory with one integrated into the overhead thing.
So, if preFL Leons did not come with them, has no one tried swopped the overhead thing for one from an equivalent Golf that has this storage in it, or same for FL Leon if in deed SEAT never got round to providing that storage?
If fitting the "grab handle" correct age/fitting version to a car that did not have a grab handle from factory, you would also need to buy 2 spring clips - I think, as they will not come as part of the sunglasses storage unit, small extra cost but annoying if you are "ready to go" as soon as the storage unit lands on your door step.