how would you hook all three 2wire buttons up and make them control the cycle starts and stops and an all stop function?
I suggest reading through your manual. there is a ton of great information in there. 2 wire push buttons would just be wired into the regular grey I/O inputs in the controller. The “all stop” you speak of, is this an e-stop? if so, there is a specific input on the far left side of the controller to wire in your e-stop to. keep in mind, the e-stop is expecting 2 separate signals so 4-wire push button.
As for configuring the push buttons, there is a section in the installation to configure your I/O to start or stop a program. In order to control the robot from a push button, you need to be in “remote” mode. The manual will explain that also.