There are two layers:
QWRT to toggle QWRT.F1 to mute microphone via Shush.F2 to copy screenshot to the clipboard.SHIFT and tap F2 to save screenshot as a file.F3, F4, F5, F6 to resize a window via Divvy.Both CTRL and ESC are frequently used in Vim.
CTRL/ESC to send ESC.CTRL/ESC to use as CTRL.SHIFT and right SHIRT and then tap N.