How to perform Key Combos?

I’ve tested a few key remapper apps:

  • qJoypad = just awesome simple and intuitive, but “only” a remapper,
  • AntiMicroX = complex software, the best one for everything (reorder buttons, remap buttons, auto loading profiles) unlucky its advanced keys don’t allow me to perform the key combos I’m looking for (see examples down below)
  • controller mate = incredible software, only Mac, unluckily

Key combos I’d like to simulate:

  • press and hold to launch another key, than pressing the same key once

  • press a button twice to launch another key than pressing the same button once

Some suggestions ?