Exclude uncomplete hexagone

Good morning, ( Sorry still have some french time line )

I create with lunchbox one hexagone cell on a surface.
I want to exclude all the hexagone on the edge of the surface ( can’t remember how to )
I mean all the uncomplete hexagone.
Easy for a lot but I don’t use it so much and I forgot.

many thanks for your help


Many thanks , you are really the best ! :+1: