How to display popup globally over the network.

Hello,

Is it possible to set up the popup under the main site or network dashboard and display it globally over the network?

I've already asked about that 2 years ago and got the answer, but It looks like it doesn't work any more.

to make the pop up global. add the following line to your wp-config.php

define(‘PO_GLOBAL’, true);

once done, your pop ups should display globally over the network.

https://premium.wpmudev.org/forums/topic/display-popup-sitewide

I've tested that but it doesn't work for me. Is this feature still available?

I would like to activate the popup plugin only for the super admin or for the main site and create globally displayed popups. I would like to use it as welcome popup or a notification.

Best regards,
Damian