The workflow for creating or editing dimension elements or derived text measures is:
For dimension elements:
Create the dimension element.
Define or edit the expression, filter, binding, and sort order properties in the Main tab of the Edit Properties dialog box.
See Defining or Editing General Properties for Dimension Elements.
For derived text measures, create or access the derived text measure, then define the expression and range values in the Main tab of the Edit Properties dialog box.
For dimension elements and derived text measures, edit any applicable alias sets bindings.
See Creating or Editing Alias Set Bindings for a Given Alias Set.