Novation Remote SL Mk II Setup

I I'm trying to make a script for the SL but I'm getting some issues:

First has to to with the Arm state of a track and the LED. Right now everytime a choose a new track the led keep on in the previous. The Light feedback isn't coming off when I choose a different track.

Second aspect has to with bidirectional comunicaton between Live and the script.
An example is, if you mute a track in Live itself it won't reflect in the controller.

This two things are crucial for me... Am i missing something or this is not possible with remotify?

Thanks