Manual Step Edit Keyjazz?

I was just wondering if there was an easier way to have renoise configured so when you want to punch in chords in the manual step edit mode you won’t have to hold down the left shift key at the same time. At the moment I use a bent hairpin to wedge between the shift key and the tiny space next to the keyboard casing in order to hold the shift key down temporarily. I know that in realtime mode I don’t have to hold the shift key, but I program everything in step mode, because I don’t hook up any midi keyboards.