To insert your own template of subscription service in PopUp, follow these steps:
1. Open your PopUp edit menu https://prnt.sc/fdsohp and click on “CSS/HTML code” tab https://prnt.sc/fdsp1k.
2. You will see two windows in it: CSS code and HTML code.
3. In the HTML code delete all content after line (1) to line (2)
https://prnt.sc/fdsrju (you also need to delete [endif] line). Then insert your code of subscription service after (1) line. Check this screen https://prnt.sc/fdssq0-instead of selected text there will be your template.