anyway to clamp steering on Revo 13?

My main method for fishing salmon is mooching and jigging on my Revo, and I'd like a way to clamp my steering to use both hands and fight fish or use 2 hands to jig/mooch while I pedal straight or in a wide circle. It just becomes a handful when your boat wants to go any direction. I'm wondering if anyone has a figured out a way to temporary clamp the steering lever? Thanks!

Adrian

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2018 demo slate blue Revolution 13

I use a thumb screw at the end of my handle to hold the rudder in-place.

I see, so where you would install the knob you'd instead put a thumbscrew? That makes sense. Would the screw just dig into the kayak or do you install some sort of plate underneath?

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2018 demo slate blue Revolution 13

I put a point at the end of the screw, but I`m in the hunt for some protection (plate) underneath.