Right now, if you have a styled table element in a KB article (say you changed cell size or you changed text alignment in a box), and you copy and paste that box, the styling is lost. This is also true if you copy and paste a call out.
We use styled boxes / tables for steps in KB articles and it makes it very hard to reuse these elements. So we would hope that copy pasting an element would also copy its styling.
Cloning articles would also help somewhat with this.