Definition settings are a few special properties for all definition types that may only be accessed from the definition list in the workspace window: These are the definition Name, Description and Label.
In the workspace window, expand the definitions branch and right-click on a component definition listed therein. Select Properties...:
This will invoke the Definition Settings dialog window:
The following list describes the functions of this dialog:
Name: Enter a name for the definition. This name must conform to FORTRAN standards (i.e. it cannot begin with a number or contain any spaces or other illegal characters).
Description: Enter a description of the definition.
Label(s): This property is used to help organize component definitions existing in user defined library projects, for the purpose of display in the Library Pop-Up menu system. See Adding Components to a Project for more details.