Just a thought… It would be great to have some sort of simulator that I wouldnt have to physically hook up to my computer (IE my controller … Its kind of expensive to have an $800 Controller laying around to test my logic on before commissioning my work. 
Yes, you’re right. This has been in development for some time, and currently appears as “next on the list” in the PLCnext Engineer development roadmap: https://www.plcnext.help/te/Features_and_roadmaps/Roadmaps.htm