Hello, 

Can this be helpful: https://collaborate.pega.com/question/what-does-limit-single-data-page-checkbox-does

Hi,

Each time that you reference a data page with different parameters, an instance of the data page is created on the clipboard. You can have multiple instances of a data page on the clipboard, each one created by a reference with different parameters from the others, or, if you have checked the Limit to a single data page check box on the Load Management Tab, each new reference to the data page creates an instance of the data page that overwrites any existing instance.

Hope this helps!

Thanks,

Geeda.