You will do partial panel during your skills test on a G1000
The long and short of is setting up a partial panel in a DA42 involves covering the G1000 MFD's. That leaves you the stand by instruments to recover from your unusual attitudes etc etc....Yes that includes the Attitude indicator which is a bit of a cheat for obvious reasons.
The CAA require you show you can recover from a traditional instrument set up which is done in an FNPT2 before you go up for you skill test. You may pass your IR on a G1000 aircraft but you can hop straight into a traditional instrument set up aircraft so you need to show you are safe on both.
I personally love the G1000. Its a great bit of kit. The wind arrow and speed is a god send in the hold and on those approaches. Enjoy it!