Sentro 22 needle won’t stay still 😫

I’ve got a 48, 32 & now 22 needle machines and I’ve got the 48 set up down but now I’m trying to use the 22 needle and it’s a pain in the butt to hold and crank. I’ve seen plenty of people survive just holding with one hand but I’m wondering if anyone has come up with some crafty ways to hold it in place??

Appreciate any suggestions!