To explain the above answers more clearly - the answer is to not so much use the triggers that are available to hide the interface, but rather override the interface files to offset whichever components you wish to hide completely off the screen.
This will allow hotkey usage as the functionality will not be turned off, however the interface (or parts you wish to hide) will remain off the screen.
To explain the above answers more clearly - the answer is to not so much use the triggers that are available to hide the interface, but rather override the interface files to offset whichever components you wish to hide completely off the screen.
This will allow hotkey usage as the functionality will not be turned off, however the interface (or parts you wish to hide) will remain off the screen.