One of the most underrated tools in Bluebeam Revu is Visual Search.
Instead of manually counting symbols across hundreds of drawing sheets, simply select one symbol and let Bluebeam find every matching occurrence automatically.
I regularly use it for door counts, lighting fixtures, fire alarm devices, and MEP equipment takeoffs. Combined with Bluebeam's highlighting and counting tools, it can save hours of repetitive work during estimation and quantity surveying.
If you're still counting symbols sheet by sheet, it's time to explore Visual Search.