Hello @Dat Pham  Click on the button on the form and you can choose the action to close form,.

This option will close popup after submit immediately. My idea is, when user submit form successfully, then show the thank you for subscribe etc… The popup will close after x seconds ( x could be dynamic change ). Do we have any option or custom way for that ? 
Thank you.

Hello @Dat Pham  You will have to write a JavaScript code for that

Hi @Maxbuzz, thanks for replying. Do we have any status for success submit form?