Provides a new combinator that filters out all unwanted signals.
Simply open the combinator after placing it and add all the signals that you want to keep. Connect any signals to the input and only those specified in the UI will make it to the output. It should work with all valid circuit signal values in the game.
If you disable the combinator in the UI, nothing will be output, regardless of input.
Should have minimal impact on UPS.
Due to Factorio limitations the output signals cannot be displayed on the right hand side / overlay where you would usually see both in and output signals. You will have to connect the output somewhere to see the output signals.
Entity Graphics from https://github.com/GCascaes/Filter-Combinator