How to open same page in multiple windows in Oracle Apex for the same User

Hi,

I have a requirement where I need to call the same page multiple times and need to perform same validations everytime.

I have taken button which when clicked open new window for the same page,but my requirement is window 2 should not accept value entered in window 1 and so on.

To meet above requirement , I have taken one item on the page which keeps incrementing everytime we click on button(everytime we open new window),

but the problem is after opening window2 when I come to window1 and reload the page it is taking value in the window2 for that item.