Interested to know if it’s possible to upgrade a machine that originally came with an amatron+ box to amatron 4? I know the you could go from amatron+ to amatron 3 fairly easily but is it possible to take it to amatron 4? Curious to know if anyone knows anything. I have two amazone machines in my yard, one on amatron 4 with full GPS and section capabilities and the other on amatron+ and manual sections 
