Pokki is introduced in this thread.
Pokki plugin can pass some Pokki events into C2 event sheet, or execute some Pokki fuction. To use this plugin, you might need to setup environment first.
Currently, it provides "Condition:On hidden", "Condition:On showing" to support implementation of pass/resume when pop-up window hidden/showing.
Here is an example, it inculdes a capx file, and it's Pokki app, you can add this app to see the result. You will see some text after showing window.
To implement pause easily, you can try