Does it exist? Let me explain further if your unclear. If you were to be in "X" tuning. And wanted to have "X" fret on the "X" string fretted while leaving the others open. Is there anything that allows you to do that? The reason I ask is because there are some chords that I've been trying to attempt while in DADG tuning and well, either my hand can't reach or it's just a bit painful to hold for longer than 5 seconds. Anything like this exist?