A Worthy Device - Tourbox
Folks, check out Tourbox - a device that brings significant productivity and ease to working with PS and LR (and other software tools), especially if using a pen tablet - https://www.tourboxtech.com/en/index.html
In the past I had attempted to hack MIDI controller hardware to do some of what Tourbox does, with varying degrees of success, as I find the keyboard gets in the way of using a tablet seamlessly. With the Tourbox at my left hand and the tablet pen in my right, I find the post-processing workflow seamless and very efficient. I have not had much time with the device yet but after a few weeks of use, I'll post my thoughts as well as more on how I changed the default PS mappings and why.
Tourbox is available on both Amazon and traditional photographic supply houses like B&H, etc.