I just created a ToolSet for steel framing where I used a Custom Column to display the Steel Member Size on the Markup Dimension (what I use for Steel Framing) on the PDF. This worked great because I used a Choice Custom Column to filter the different sizes into different categories based on the Markups Subject name.
I am working on an idea for Structural reinforcement that displays on the PDF and calculates the area in the background so I can put that into a Legend.
Just always keen to hear other peeps ideas and what I can test/create/share next.