Not able to copy multiple Requisition Lines in Responsive self service procurement

Summary:

As in the classic Self service the user is able to copy multiple lines, But in RSSP we can copy only one line at a time not multiple, Please anyone can guide how to achieve this

Please refer the below screen shot

Content (please ensure you mask any confidential information):

As we can select the multiple lines and duplicate in classic UI

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

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