I want to be able to add “subscribe” templates but am not able to do so for some reason. I have the theme and everything installed. I picked a magazine template. If i go to the top left hand corner of the website page, I have an option to add elements but subscribe templates don’t appear. If I press add element button which is also included in the top left hand corner, i click on the subscribe template i want but nothing appears to materialize. How can I actually add the subscribe buttons?