Open new window from another window

I am new in dhtmlx users .
I have a form that is attached to a window. In this form I have a button to create a new form when the user clicks on it open a new window and display a form similar to previous form, but i have an issue that is the new form attached to previous Window and didnt open any new Windows . What steps should I do to achieve my goal ?


Please, provide us completed demo to inspect your issue locally … pport.html