The User Input Group node () is a collection of other user inputs, user input groups, and material parameters. Use it to organize the GUI layout of the feature and property. This can be a complex task, and you can read more about the details of this process in Designing the GUI Layout.

To add a User Input Group, first add a feature node or property node (for example, a Generic Feature, Domain Condition, or Device Model Feature), then:

The Settings window has the following sections:

The Group name field cannot be in conflict with any other User Input or User Input Group. In the Description field enter a text to display for the group. For groups that represent a section, this description becomes the title of the section. You can pass the component’s arguments to the description. The argument name must be placed between two # characters. For example, if you have an argument arg.param = material, the string #Plot_in the _#arg.param#_frame will be displayed as Plot in the material frame.

In the Group members list you add members to the group. Click Add () to get a list of all possible members to add.

Use the GUI Layout list to choose how to organize the group members in the window. The options are Group members below each other (the default), Group members placed in a stack, Create a widget for each vector component, Radio buttons from first user input, others interleaved, Group members define columns in table, Group members define a section, or Attach activation on group members.

If you choose Group members define a section for example, the group members are placed sequentially in a section in the window. Depending on the choice you made in the GUI Layout list, different options appear beneath the list.