Adding New segment under control budget

Summary:

Hello Experts, We have requirement from client to add a new budget segment in control 

budget which is already IN USE status so if we want to add new segment under control budget

and control at new segment level along with other existing segments what is the best way of handling it

Content (required):

Budgetary Control

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

23B

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