I am trying to update Change order workflow controls for terminating the workflow

Summary:

Content (required):

I am trying to update Change order workflow controls (using additional workflow controls) for terminating/Restart

the workflow.It is greyed out and is not allowing me to update.Can somebody help how can I update the same. Also who is considered as analyst in this setup

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

23B

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