Bedrock Energistics Core adds two commands for inspecting machines and networks in a running world. Both require game director permissions.
Like all custom commands, they are registered under a namespace, which is fluffyalien_energisticscore unless you changed customCommandNamespace in the add-on's config (scripts/__config.js in the behavior pack).
Debug mode shows live information about the block you're looking at, and lets you set a machine's variables.
Enable it with /becdebugmode. It applies to the whole world and stays on until the world is reloaded, either by restarting the server or by running /reload.
While debug mode is on, hold a stick and look at a machine, conduit, or network link to see its:
Sneak while looking at a machine and holding a stick to open the Set Variable form. Enter storage.<storage type> to set an amount of a storage type (for example storage.energy) or property.<name> to set a block dynamic property. The value is parsed as JSON and must be a number, string, or boolean, and a storage type's value must be a number.
Use /becprintnetworks to print every active network in the world along with its ID, dimension, and storage type. The result is shown as the command's output and logged to the content log.