Test screen in 2.11

[rocksfan13]

What key combo do you use to get to it? Also known as preview mode. Also, how do you exit out of it?

[Freedom]

press x to start it
then you can scroll to see the various functions, like s is for secrets and c is for cycling combos and works for freeform combos too.
hit Esc to exit it, or R to reset it.