What Create Action Does

Create Action includes a main window and a set of dialog boxes for creating an action and its associated data types.

Create Action does the following:

Creates an action definition that runs a command.
Creates a file HomeDirectory/.dt/types/action_name.dt. This file stores the action and data type definitions created for the application.
Creates an action file in the user's home directory. The action file is an executable file with the same name as the action.
The action file's representation in File Manager is called an application icon because double-clicking it starts the application.
Optionally, you can make the action icon a drop zone by specifying dropable data types when you create the action.
Creates one or more data types for the application's data files (optional).
Creates an Open action for each data type.
Creates a Print action for each data type (optional).
Reloads the database of actions and data types. This makes the actions and data types take effect immediately.

Technical documentation