Dear Cruz,
The scordatura could be achieved with info in this thread:
You can achieve the arpeggiated/bracketed chord by entering the chord with the bracket and then add the arpeggiation to the next note. Enter engrave mode and drag the arpeggiation indication back to the desired position next to your chord.
Sorry, I had to edit this post because I forgot the link and I just tried the arp/bracket thing. Pretty straightforward 