Airbrush Buffer Tank

I’m looking to add a buffer to my Iwata Smart Jet compressor, as I find when spraying with higher pressures, I get falloff faster than I’d like.

Does anyone know much about buffer tanks and everything I’d need? I don’t fully understand how regulation works and where I put it, and what I need to do to operate a buffer safely. I’d also like at least a second outlet for either a future second brush, or more likely, just an air outlet for other reasons.