Flexbar

Description
Flexbar provides 120 buttons that can be moved, scaled, shaded, hidden, shown and alpha blended completely independently of one another.  This allows you to put just as many buttons as you need, just where you need.

In additon to basic extra bar functionality, FlexBar employs an event (think trigger) / action (command) architecture.  It is constantly
keeping track of the status of a wide number of things from your buffs to your health to whether you have a target or not.  When it detects a change in these it raise an event that you can have a command respond to - such as showing your overpower button when your opponent dodges.

Additionally FlexBar provides some extras that just came with the territory:
Extra macros/scripts beyond the limit of 18 with a character limit of 10240 (nearly limitless if you break your scripts into preloaded
functions).
AutoItems - makes it so, when you run out of a potion that was on a button, the icon stays there, and when you get more, it automatically puts them back on.
Extra macro commands (these were 5 line bonuses that just expose some things that flexbar already had in it)