How can I read NI 6501 Properties in MAX?

I developed a program using two 6501 DAQs, both using digital outputs, but with different O.C and Active output configurations. I gave them aliases based on their serial numbers. In my fixture, they are connected to a USB Hub, which connects to the computer. Everything works fine on the development computer, but now I need to make it work on other computers. I plug in the hub on another computer and MAX shows me Dev1 and Dev2. Before I go further, I need to know which Dev is associated with which 6501. They could be reversed. Is there a way to select Dev1 for example, and find how the digital outputs are configured? That would tell me all I need to know to continue and either import MAX settings from the development computer, or rename the devices with the proper aliases. I tried following directions in HELP "View or Change Device Properties". See attached screenshot, but right clicking does not give me the option to select PROPERTIES. What am I doing wrong?