AI's display windows are built from "virtual bars", you assign categories to bars so that items in that category are displayed on the specific bars you want. There is no limit to the number of bars you can have inside a window but obviously you only have so much screen real estate before it becomes "too many".

AI uses several methods to assign a default category to an item such as what professions you have, tooltip scanning, basic type/subtype and PeriodicTable. You then assign those categories to a virtual bar.

You can also over-ride the default category by creating a rule that matches either a single or multiple items.

Overview:

• unlimited number of bars (there are practical limits though before your screen becomes full)
  
• assign items to a category of your choice (overrides the default assignment)
  
• assign categories to the bar of your choice
  
• configurable bars per row
  
• configurable width
  
• display bank, bag, keyrings for current and alts across all realms
  
• separate keybindings for bag, keyring and bank viewing
  

Key Bindings:
Press ESCAPE to bring up the blizzard menu
click on Key Bindings
scroll down to ArkInventory
bind the keys you want to use

See ReadMe.txt and VersionHistory.txt for further details

FAQ is here http://code.google.com/p/arkinventory/wiki/FAQ. Please ensure you read it first before posting a problem

3.02.26 (04-NOV-2009)

• fixed - border style issue due to renamed textures
  
• fixed - tooltips are now scaled back to normal (100%) when you disable tooltip scaling
  
• changed - settings config option changed to tab style to make the choices more obvious
  
• added - background colour options for the search and rules windows

3.02.25 (03-NOV-2009)

• added - 6 solid border styles, Tooltip 1/2/3 and Square 1/2/3 for better visibility
  
• added - AddonLoader support, defaulting to always:delayed
  
• fixed - potential issue when using a font that was loaded after this mod was loaded
  
• fixed - removed extra blank line on tooltip item counts when item is only in a guild bank
  
• changed - ace-oo library removed
  
• changed - config options table changed to reduce memory footprint
  
• changed - function ArkInventory.ObjectCountGet( search_id, just_me, ignore_vaults ) - added 3rd parameter to ignore guild banks when requesting item counts