Clear ND drop in filter for RF-EF adapter - does it exists?

Hey!
I'm currently using the Canon VND drop in filter (with the official Canon RF-EF adapter), but it's annoying that the filter doesn't go the 'clear'. I always have to change to the clear drop in filter, but often during a documentary shoot that's not an option.

I saw the Breakthrough filters, but their VND also starts at 2 stops. So, does a VND with a clear option does even exists?

Thanks!