I would like to request a new implicit device, which likely is only accessible from the “Devices” tab and not as a “Now” bubble, which has the main CT power minus the sum of the smart plug power. This device would represent the power consumption not being tracked by smart plugs, and may aid in hunting down vampire loads. The “Power Meter” feature would work for this device.
Related, the “Other” implicit device should support the “Power Meter” feature. All the other devices (either discovered or smart plugs) have the “Power Meter” feature supported.