Can't see event triggered in console

[scisimmer]

Hello

Hope this is the right place to ask my question. I'm still a real newbie when it comes to LINDA but perhaps someone can help me out here.

In the Realair Turbine Duke, I can see in the Linda Console which event is triggered when clicking most buttons. In the picture below for example for Autopilot main button, HDG, YD etc, all is registered in the console.

However, the VS button (which simply shows the vertical speed selected) doesn't trigger any event that is recorded in the Linda Console. Does this mean I cannot assign this button or is there something I'm missing? Been playing around for hours to get this button to work but I just can't figure it out.

Furthermore, I've managed to assign the UP/DN switches to increase/decrease VS in 100 ft/min increments. However, this only happens in the background and doesn't show on the display when I press my hardware UP/DN buttons. When I click these buttons in the virtual cockpit in the sim, it shows the selected VS on the display for roughly 3 seconds before switching back to the altitude in FT. Any ideas how to replicate this behaviour?

Thanks!

https://imgur.com/a/N9GPzFS