Assigning Multi Level Category Schema to Investigative Case Management

Hi,

I have a requirement for assigning category schema for Investigative case management and as part of this i did the following:

Cross checked under Define Application Areas for Categorization

Defining of the Category schema in webui and assigned the case type under the Application area and its in Active Status

Assigned the Functional Profile for "Categories" in the Business Role.

After doing these also I am not able to view the Category Schema in ICM, Please can anyone suggest what am I missing.

Need inputs whether Can I use Multi Level Category Schema for ICM object as out of box solution or do I need to do some enhancements.

Best Regards,

Sunny