A common challenge with previous editions of Bluebeam Revu was that if you were using markups of set dimensions (such as punch keys, sinks, toilets, etc) on documents or viewports of varying scales, you would need to create separate toolsets for each scale to ensure those markups would be sized properly. For example, you might create two different sets of punch keys, one sized to 1/4"=1' and another sized to 1/8"=1'. This was not only a bit of a hassle to set up, it also meant you had multiple tool sets that you needed to manage in your Tool Chest.
The good news is that all editions of Bluebeam Revu 2015 (Standard, CAD, eXtreme) now come equipped with the Dynamic Tool Set Scaler, which eliminates this problem. The way it works is you define a "baseline scale" whenever you create the markups initially, and from there Revu is intelligent enough to automatically adjust their size when you use them on documents or viewports of different scales. If for whatever reason you don't want them to autosize, you always have the option of toggling this feature off via a button in your tool set.
An important thing to note is that you always want to make sure you've set your document and viewport scales correctly. You can double check this by going into the measurements tab, which is usually in the righthand panel but you can always find via tab access.
Check out the video below to see the new Dynamic Tool Set Scaler in action!