Truck Bed Air Compressor

I have a question about the air compressor that is built into the bed.

I've seen videos where it's behind screws in the left bed wall, and there's the digital circular panel that you use to access and control it.

My question is there's a bunch of accessories in the builder that talk about portable air compressor.. air compressor digital readout or what not..

Is this what they're talking about or that like a separate air compressor accessory that comes in a bag or something.

Is the compressor I've seen in videos where the digital control and air hose port is fixed on the left side of the bed, is that those accessories?

 

Which trims can it be added to as an option?