Pop up window with list of parameters

Hi all,

I'm looking for a m4l device that shows the values of any parameter I add in a seperate window. So that when i turn a knob or make any change to a parameter, I can see this in the pop up window without having to go to the channel I just where I adjusted a parameter.

ex. I have a channel with multiple drum racks grouped in an instrument rack. I mapped the chain selector to a macro knob to select another drum rack. It would be nice to have a seperate window that shows me I'm on the second or either which chain without going back to the instrument rack to check if I'm in the right drum rack.

I hope my explenation is a bit clear. Would be great to have a device ready or somebody showing me the way to make it in m4l. I'm an intermediate user of m4l.

Thanks in advance