User guide

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this works, the user could easily break it by entering an invalid string. It is better to present the user with a series of
known, valid choices in the form of a pop-up menu:
1. Start with a recipe as shown below, consisting of a Group node, with a child PrimitiveCreate node, and a
connection out of the group from the PrimitiveCreate to a Merge node.
2. Select the Group node and press Alt+E to edit it.
3. In the Group node’s Parameters tab, choose Edit User Parameters from the wrench menu.
4. Choose Add > String.
A new user parameter of type string is created.
5. Change the widget type of your user parameter to Popup Menu.
In the wrench menu of the new parameter, choose Widget Type > Popup Menu.
This changes the user parameters widget type to pop-up menu, where each entry in the menu is a string.
For more on the types of user parameters available, see User Parameters and Widget Types.
13 GROUPS, MACROS, AND SUPER TOOLS | MACROS