Same here would like to seat around STH as well. Last season I didn't have any STH around me. Moving to the shoot twice zone in the 300s this season. Looking forward to seeing how this online selection process is going to work.
They have posted 3 different 12 game packages (two weekend plans and on weekday plan). You should be able to find the different plans on their website. I am a 12 game ticket holder myself got the email last week.