polly (or ochorocho
go through the web admin's code, and try to understand how it works. Look at the specific wizards what they already do. atm wizard is mainly a different view for the same the data one can find in advanced grouped by devices.
Once you understand how the current web admin really works, see if you can create a new wizard page. For example, atm any of the wizards displaying a huge amount of devices (like the Lights wizard) could need an overhaul. See how it works now, and make more useful.
In my humble opinion, it really is the presentation only that does not help. Try to extend the lights page to, for example, limit the list of devices by Room, or Device Type, or Controlled by. Things like that.
Do not expect to understand web admin easily, though