I'm pretty sure that alt-click behaviour isnt standard, unfortunately there arent any other modifier keys to use since bliz does use ctrl and shift.
I discovered that it was KC_Items using the ALT+Right Click. It would have been nice to use KC_Items for searching for gear that I've seen someplace in the game. But, since I also had LootLink installed, I decided to uninstall KC_Items and keep LootLink. I am using PT, PT2, and PT3 and I have the PT2 and PT3 browsers installed, I wonder if that lets me browse for loot like LootLink does. I'll check that out.
Anyway, thank you for listening and replying. I'm still loving Baggins, great AddOn. Without KC_Items, my ALT+RightClick is working great. Unfortunately items that don't exist in PT2 are starting to drive me crazy.
Keep up the great work on this AddOn.