You've almost fully mastered the Mod layer but there are still a couple of keys to learn.

The individual keys are:

  • Mod + { 19 } = { F1F9 }
  • Mod + 0 = F10
  • Mod + - = F11
  • Mod + = = F12
  • Mod + ~ = Esc
  • Mod + Q = Esc
  • Mod + A = Caps Lock

Yes, there are two Esc keys. Use whichever suits you better.