Lets you specify which set of interaction shortcuts (such as mouse operations and hotkeys) you want to use. By default, the preference is set to use Mudbox hotkeys for Mudbox only, but you can also (for example) choose to use the Maya interaction shortcuts for the entire suite.
This preference is also available in the Mudbox Setup window the first time you launch Mudbox (unless you have already set the preference in another product in your suite).
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