ability to add HTML and iframe blocks like in Popup
Folks, our former Wishlist portal, where our users shared their requests and suggestions, was transferred to this forum. You’re most welcome to vote, add new ideas, and leave your comments here — we surely will consider them all! 
Original Votes: 1
Now you can add HTML and iframe blocks like in Popup with a new Slide Builder option:
This is only a part of our major update. Find more info in this post 