Oh! How to do it link a wire to the popup saying, “When popup closed” “Open popup”. Pretty simple!
Also…
WELCOME TO FORUMS!!! 
If you ever need game ideas, use @Bestie_Boo 's guide on it. She is very good at that
https://forum.creative.gimkit.com/t/tips-and-easy-info-for-map-choices/121856/42