How to send Midi CC to external controller in order to get the retrologue filter Freq. changes?

Hi, i built a small module with an arduino to send Midi CC to the Retrologue in order to change the filter frequency cut remotely.
But I would need also to get events from the changes done with the mouse in Retrologue, sent as a Midi Out by retrologue to my external controler. This way I can display the real filter value on a bar of leds on my external controler. I dont see any event sent via midi when i manipulate the screen of the retrologue. Is it possible to set it so that Retrologue sends messages when parameters are changed?