How to end date a specific operation in Work Definition?

Summary:

How to end date a specific operation in Work Definition?

Content (required):

There is an field 'End Date' in work definition operation (refer attached screen shot), is it possible to end date a specific operation in the work definition? seems, application not allowing to put end date on a specific operation. Only option to create a new version of work definition.

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

21 D

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

N/A