Maya includes a number of pre-made commands that correspond to the actions you can accomplish with the user interface (for example, opening editors or creating objects). These commands are organized into categories.
To find a command in the categories, click Search (near the bottom of the hotkey editor window) and type some text to find. Use * to match anything. To find all commands that start with Delete, type delete*. To find all commands with the word “light”, type *light*.
The distinction between Press and Release can be important, for example when you assign a hotkey to a snapping mode. You want to assign the command to turns the snapping mode on to the key press, and the command that turns the snapping mode off to the key release.
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