I'm gonna go out on a limb and say....
1. No.
2. No
Keep in mind that the EEPROMs of the clusters in the Mk4 are pretty stupid-simple 2KB ROMs - literally, there are only 2048 bytes that one has to work with. The Virtual Cockpit / Active Info Display and MMIs are basically full-on near-modern computers, so complexity is a few (many) orders of magnitude greater, and at the same time, VWAG has learned a thing or two about locking down their hardware.
Now, with all of that said, there are some folks in Asia and Eastern Europe who have done a lot of hacking into the hardware on the MQB platform, so I'm not saying what you're trying to do is impossible, just that this tool will not be the thing to do it.