To expand the functionality of Bluebeam for inspection, attaching image(s) to a markup with the mobile app will be beneficial to the users. For example, when the workers do a site walk-through and discover a defect/ misinstallation, they can immediately create a markup and attach an image to the markup for easy follow-up.
I know that we can overlay an image on a drawing, but the image will cover the drawing. If there are lots of problems, the whole drawing will be covered, and it is difficult to locate the issue.