I just had a thought while I was going to lower my keystone.
What if Blizz made it so the NPC for keystones has different menus instead of just one button to lower? And every level has resilience so say you time all 6’s but you want to farm 2’s. You can select 2’s for your keystone level and set 6 to your resilience so when you’re ready to work your way up again you’re able to use the resilience menu to jump right back in?