PLC key Portenta Machine Control

First time user with the PMC, newish to programming. My first unit died shortly after deliver, thankfully Arduino support kindly sent me a replacement. I've built a simple PLC trainer that utilizes the PMC via Arduino PLC IDE. I do wish there was better documentation on the PMC to IDE interface but so far I've been very pleased with the unit itself. The most "advanced" I've gotten is to successfully utilize the PMC for closed loop control. The only functionality I have yet to make use of is the programmable I/O.