The slash commands are "/rab" and "/rustactionbars".
You can create an arbitrary number of rectangular action bars with an arbitrary number of buttons on them.
You can drag abilities and items onto the buttons. Clicking on them activates them.
Right clicking or dragging an icon removes it from the bar.
You can drag a frame by left-click dragging the green button at the top-left of the frame.
You can delete a frame by clicking the red button at the top-left of the frame, and then clicking "Delete" on the prompt.
Bars can be edited through a GUI configuration screen.
Type "/rab" without the quotation marks for a list of commands.
If you have a slow computer, and find that this addon has too much of an impact on performance (mouse over the computer icon on menu bar), you can increase the cooldown update timer period. The default value is 0.1. This is measured in seconds.
Hopefully fixed a bug when sometimes deleting contents of buttons.
Added GUI configuration screen.
Fixed error when changing lock/unlock mode while in combat.
Fixed bug where locked frames would display their drag and delete buttons after logging in or reloading the UI.
When locked, content from buttons cannot be right-click deleted.
When locked, the drag and delete buttons are hidden.
Added range indicator to buttons.
Added usable state indicator to buttons.
Fixed bug where a removed button wasn't properly removed.
Fixed cooldowns not working for items.
Added the ability to not display global cooldown timers. See "/rab gcd".
Added profile support - see "/rab profile" for more information.
Changing the global action bar button size no longer requires /reloadui.
Added ability to change bar size via slash commands. You must /reloadui for the global size change to take effect.
Added cooldown tracking.
Updated version number.
Fixed some combat related bugs.
Added ability to change cooldown update frequency.
Added ability to lock and unlock movement of the action bars.
Fixed background of action bar not picking up mouse events, which allowed them to "fall through".
Fixed/enabled dragging items and abilities between action bar slots.