CRJ-700 commands help request

Hello everyone, I am Ricardo from Buenos Aires, Argentina, and I'm new to this site. I apologize if my English is not good enough.

I am building a simulator, based on the FSX's CRJ-700. It is almost done, but I can't find the command line to switch screens in the EFIS.

I attached an image where I show the buttons that I refer to. They are identified with the letters UP and DN.

I want to assign these buttons to 2 switches so I don't have to operate them with the mouse, but I can't find the command line that corresponds to them.

If any of you know these commands, I would really appreciate the help.

I send you the best regard.

Thank you very much

I looked at the Bombardier_CRJ_700.cab file which holds all the gauges for this aircraft in an effort to try and find out if there was some kind of command for those buttons, but I can't ascertain any type of command from the efis_screen_bezel.xml file. It may not even have a type of command. It just looks like a simple mouse click and I'm not even sure if that would have its own independent command for that or not as this is just part of the gauge XML code.

If it helps, the code mentions for the up button and

Thank you very much CRJ_simpilot!

I will try, and let you know the results.