Can a standalone event be added to a Specialization as an activity?

Summary:

Hello Experts,

in 26A, I am unable to add a standalone event as a Specialization activity. Please confirm if this is working as expected.

Regards,
Sumit Upadhyaya

Content (please ensure you mask any confidential information):

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

26A

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