I'm trying to display a value in a tube via the connect to Logistics selection button, instead of wiring up a red/green wire.

It's staying as zero. If I connect a wire without changing the Enabled condition, it starts displaying the number. The wire is coming straight off a Roboport so i know the signal is present via the logistics network.

Is this a supported scenario? I really want to get rid of a few wires and the corresponding power poles (only used to connect the signal wires - playing SE/K2 so I have 64 length power connections but signal wires are still short so I have to run poles )