I love the new Game Master usefulness! But, I believe you overlooked some simple things to make a DMs live easier:
The only way to see what an item looks like is to select it and put it into the map. Please put a preview window at the top of the item list (in the same area you have the 2 music slots for current playing music would work perfect).
All the amazing sounds are great, but I could spend my life as a DM just selecting sounds for mundane/normal movement in the map. PLEASE make door sounds, trap sounds, don/doff clothing sounds, etc Automatic! You could make this a General selection in the Audio section of Options. Also put a check box in each item to be able to mute the sound at my discretion. A variety slide bar would be great as well (mute, soft, normal, loud, and Wake The Dead)!!!
Last but not least (and maybe there is a way to do this one, but I haven't found it yet) I can't put an item on Top of a desk or table. I see that YOU can, but I can only put things Inside. I would like to decorate/furnish my flat surfaces with goblets, keys, books, letters as well. Please add to the fantastic world you have allowed us to play in!
Many thanks,
John