Nothing was included in the enclosure packaging.  Anyone have a link.  I tried installing myself, but I can't figure out how to add the antennae.  I can't do it before installing the board as the black wires impede the board installation.  If I put the board in first, I can't get the antennae in.

Hope this helps.

Note the color rings on the end of the antennas.  Z-Wave antenna has a Yellow band on top and goes to the left. Zigbee antenna has a Red band on top and goes to the right.

https://www.universal-devices.com/docs/ZMatter-Assembly- Instructions.pdf

In addition to @philgood comments, there have been multiple discussions about how to physically get everything into the enclosure. 

The simple answer is, the top half of the ZMatter board has to be snapped off. Then the board will fit in the bottom and attached with the included screws in the package.  That leaves room in the top half of the enclosure for the antenna mounts and wires.  See the photo in the linked discussion. 
 

 

 

Thank you, both, particularly ISY4Me!  I have seen the above link and instructions for the polisy installation. What I was missing is snapping the board in half for the enclosure installation (eISY).