Once you have the ToolBox installed and activated you can check out the User's Guide for information on every feature inside of the ToolBox as well as a User Interface breakdown.
If you get stuck there is also a detailed reference guide with information on every button and toggle in the ToolBox.
What's New?
betabuild v0.18.0.25 - May 17, 2017
Added ability to rename tags in the settings dialog
Added theme support
Added support for additional images types for Alphas:
Ctrl-B: Toggle between the Brush and Alpha view
Ctrl-W: Cycle to the next favorite set
Ctrl-M: Toggle mini mode
Ctrl-E: Toggle collapse/expand
Ctrl-R: Reset all brushes in ZBrush
Ctrl-F: Set focus on search box
Ctrl-T: Toggle favorite
Ctrl-Q: Clear all filters
Added button to mark images as ignored in alphas, located next to the rescan button in the details pane</li>
Added hotkeys
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Added button in ZBrush under the Zplugin menu to launch or give focus to XMD ToolBox
Added "Unassigned" to the categories list to show brushes/alphas that do not currently have a category assigned to them.
Added alternate tooltips to brushes/alphas when holding the Ctrl key to show the description.
Added mini-mode for a more compact UI
Added ZBrush layout changer, add new layout config file locations in the settings dialog