If you are referring to performing a CTRL + C and then CTRL + V on a control while in the K2 Designer for a View/Form; unfortunately, copy and paste is currently only available OOTB when designing the workflow.

Perhaps consider logging an ideas at: https://ideas.nintex.com/

The closest that you may be able to get to this is (if applicable) using the ‘Save As’ option to clone the view, which would allow you to add both views onto a form.