User reference frame

hi all, I would like define a user reference frame with universal robot ur10
this is possible?
secondly exist a software for windows to simulate universal robot program?

many thanks in advance

Yes user reference are possible. Under installation tab, features. The URacademy training has a section on that

The simulation software is a Virtual machine clone of the controller cabinet.
https://www.universal-robots.com/download/software-e-series/simulator-non-linux/offline-simulator-e-series-ur-sim-for-non-linux-594/
So you get the same interface as the pendant, but its not a simulator in the way of some other brands where you have a 3d representation of the robot that you can model your installation. For that you would need a 3rd part simulation like RoboDK or similar.