Hello HubSpot Community,
Thank you as always for your continued feedback, it helps us build a great product. The ability to add custom modules to blog posts is something we have been investigating on the HubSpot Product team. We likely will not be doing this via flex columns, but we are planning on giving blog users the ability to drag and drop modules into their blog posts, similar to the way a flex column workd. As a result, I’m going to move this idea into the “In Planning” stage. We’ll continue to update this post as we make progress.