This is one of the tips I gave during my GDC2018 presentations. I use this setup whenever I create a new Substance.
It keeps me focused on the height information only without getting distracted by the diffuse. This is nothing fancy and can easily be recreated by anyone, but since I get questions about my workflow, I decided to make this available here.
Put this file in wherever you have Designer installed, in my case here:
C:\Program Files\Allegorithmic\Substance Designer\resources\templates