Final answer:
The field that needs to be enabled is Available in Workspace to include the case type selection feature on CSM Workspace.
Step-by-step explanation:
The field that needs to be enabled in order to include the case type selection feature on CSM Workspace is Available in Workspace. This field allows users to select the appropriate case type when working on a case within the CSM Workspace.
Enabling this field provides a dropdown menu or a list of options for users to choose from to specify the type of case they are working on. It helps in categorizing and organizing cases within the CSM system.
Case Type Form is not the correct field for enabling the case type selection feature. It is a separate feature that allows users to create or modify case types in the system.