Transit Boxes that are not affected by the Map Zone (Hexes)

I’m trying to find a way to make several transit boxes of the my main map “behave” independently from the map’s zone/hex grid that spans the entire map board. I could simply reshape the map zone to exclude these transit boxes but that’s a lot of work and I’m lazy. Is there a more efficient way of doing this.?
I do have each area of the map re-imaged as a Basic Piece but giving them a Pieces Layer above the “map” layer didn’t work. If giving each transit box the Mat layer would work would that mean each unit in the game would have to have the Mat Cargo property?

If you are using a zoned grid and have the base grid defined inside the Zoned grid, then any Zones you create inside that Zoned grid should create areas where the hex grid does not apply. You can then add a separate grid to those zones (e.g. an Irregular grid if you want some arbitrary snapping).

Thanks Brent. That did the job!