Adding Specific Course Offering to a Specialization?

Summary:

Adding Specific Course Offering to a Specialization.

Content (please ensure you mask any confidential information):

Hello Everyone,

I created a specialization and wanted to add a course that contains three offerings: self-paced, ILT and blended. When I clicked Learning Activities > Add, the available options showed only courses. After selecting one, it automatically populated the self-paced offering as specialization activity:

Is this the expected behavior? if yes, how to add ILT offering to a specialization?

Thank you
Ahmed

Version (include the version you are using, if applicable):

24D

Code Snippet (add any code snippets that support your topic, if applicable):