On a range of topics:
Remove paint from all walls in project: 3D view, Wireframe, Isolate Walls, Remove Paint tool, hover mouse – *only* Painted walls highlight.
— Luke Johnson (@lukeyjohnson) July 12, 2013
You can use a Formula in a Family to drive data into the Type Comments of many Types at once (use “text here” in formula column)
— Luke Johnson (@lukeyjohnson) July 10, 2013