love the idea but i cant seem to work out how to connect them to network

They are great
Place one down, then select 1 or more checkboxes. place items in the box.
Then at an other location, place a box, and select the same checkbox(es), and your items are also available at that location.
Every different combination of checkboxes gives you an unique "box" to put stuff in. You can even use the same combination multiple times in different locations.

They cant be connected to the circuit network. Maybe to difficult to program, or it makes them too powerful. Limiting them with the red X is a good workaround.

1. they work great know that
2. just need to find the network tab on bot chests and add. dont need to program in network
3. not too powerful but would make easier and thats what he is avoiding