How to open FPM page as external window

Dear Experts,

Can any one let me know "How to open FPM page as external window" ?

The scenario is :

I have one Custom WDP component with VIEW1,VIEW2 where in these views are embedded in correspoding windows.I have created a configuration for this component using FPM_OVP_COMPONENT where PAGE_1 has VIEW1 and PAGE_2 has VIEW2.

Now from PAGE_1 to navigate to PAGE_2, Im using below code

    lo_event ?= cl_fpm_event=>create_by_id( 'FPM_CHANGE_CONTENT_AREA' ).
    lo_event->mo_event_data->set_value(
      EXPORTING
        iv_key   = 'TARGET_CONTENT_AREA'
        iv_value = 'PAGE_2'
    ).
    lo_fpm ?= cl_fpm=>get_instance( ).
    lo_fpm->raise_event( lo_event ).

Here, it opens PAGE_2 from PAGE_1 only(i.e PAGE_1 is not visible). Now my requirement is i need to open PAGE_2 from PAGE_1 as external window.

PS: I cannot use URL to open PAGE_2 as external window since PAGE_1 and PAGE_2 has same URL.

Pls help me to resolve this issue.

Thanks

KH