Hello there, @wim_delrue 
At the moment, unfortunately, it’s impossible to embed another widgets into the Blog posts. However, this idea is already on the Wishlist and you can upvote it here 
- HTML code block to embed other widgets
Hello there, @wim_delrue
At the moment, unfortunately, it’s impossible to embed another widgets into the Blog posts. However, this idea is already on the Wishlist and you can upvote it here - HTML code block to embed other widgets