Drag & Drop for Callout Boxes

What is the challenge?

I want to include a callout box in a numbered list, but I can't. It's either making the whole list a callout box or when copying a callout box it's just taking the sentence, but not the box

What is the impact?

I cannot use callout boxes wherever I want to use them

Describe your idea

Would it be possible to have a drag & drop option for callout boxes?