I use qjoypad (https://github.com/panzi/qjoypad https://github.com/panzi/qjoypad) to configure each shift to a single number press. So for example shifting int

I use qjoypad (https://github.com/panzi/qjoypad https://github.com/panzi/qjoypad) to configure each shift to a single number press. So for example shifting into 2nd gear sends a single "2" key press to Linux. After that, I usual xbindkeys & emacs to configure more complex bindings. So for example "WindowsKey + n" is configured to go into workspace n. Or "CapsLock + 8" is binded to close the current tab I'm on.