The design of the GUI layout of a feature or a property is an important and sometimes complex task. You often have to compromise between a simple layout and flexibility in the functionality. Each User Input node often represent a GUI component (or widget), for example fields, combo boxes, and tables. Based on the declaration of a user input, there is often only one possible choice of GUI component. In situations where there are several possible choices, you have the option to choose. You always find such choices under the GUI Options section of a User Input node.
In contrast to user inputs, which controls what GUI components you see, the User Input Group node controls when and where to display the GUI components. As an example, the user input group can list the user inputs you want to see under a specific section. This is an option in the GUI Options section of a User Input Group.
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