Available as an assembled Module and as a DIY project.
This Module is currently available.
Dual passive attenuator and dual switching module Waveform Magazine DIY #3
Waveform DIY Project #3
The Switchenator - is a dual passive attenuator and dual switching module for Eurorack. Faceplate width is 4HP.
https://www.waveformmagazine.com/product-page/waveform-diy-project-3-the-switchenator
Waveform Magazine The Switchenator
Waveform Magazine The Switchenator