Multiple questions regarding Pop-Up Pro

1. Network PopUps
a. I added define(‘PO_GLOBAL’, true); to wp-config.php and network activated however PopUps menus are still showing on subsites. I do not want sites to have functionality individually; I only want to create network popups that display across network.
b. Should there be a menu for popups on the network dashboard? Otherwise, how do I create for across the network?
2. Can you have popups display on specific pages on subsites? Is this the "advanced URL" - approximate URL? Please clarify if and how I can have PopUps display on specific pages across the network.