BU16 and Grid Editor

I just but BU16 in order to perform (what I was thinking will be) some easy task as sending Program Changes and SySex messages via MIDI to hardware MIDI workstation. Unfortunately after almost one week trying I have no success at all. I’m thinking seriously to return the controller since I will be unable to do what I’m looking for. There is a final step I can take. I’d like to be sure 100% that my hardware (MIDI workstation) can receive the messages I’d like to send. Although I try send the messages via Cubase with absolute success, I’m still not positive that BU16 can send the messages. What I want to know is: Can “Grid Editor” send “real” messages from a virtual BU16 module, when I “click” a virtual button? Let’s say that I assign a very simple not on message to a “virtual button” is there a way to click this “virtual button” and send this message from Grid Editor running on a computer, via USB MIDI to the hardware workstation? And if yes how?
Thanks in advance for any help