While there absolutely are pinouts to connect limit switches to the Gen 2 electronics, there are a few other complications.
Currently, our plan is to put out a datasheet describing the limit switch capability for Gen 2 Machines sometime in a ~month from now and also be releasing a plug-and-play kit that can be purchased directly from us soon after that.
Firmware and software updates also need to be released to accommodate limits but these changes will be ready and/or released by that time.