Available as an assembled Module and as a DIY project.
This Module is currently available.
Patchpanel for Moog Matriarch backpanel connections
This product is similar as the Matriarch 1U B2F module ( https://www.gearnews.com/voltage-vibes-matriarch-back-2-front-panel-brings-better-access-to-connections ) but due to popular request made in 3U.
https://voltagevibes.com/product/matriarch-back2front-3u-edition/