BIM 360 Docs. More compelling and powerful markup tools, markup tool management and customization to make the switch to this new workflow. Currently I utilize Bluebeam and have little compelling reason to leave the pdfs behind and utilize the markup tools in BIM 360. They need more improvement to compel people to make the switch. Many of the ideas around mark up tools hit on varies tool additions, like area measurements, counts, etc. which all are available in Bluebeam. I look forward to the BIM 360 Team developing more robust and customizable markup tools.