Please add the Scale option for general markup Properties > Layout. I often have need to increase the scale of a rectangle, circle, etc by a factor, such as 150%, but Bluebeam will only allow you to change the Layout Width and Height, and even those have to be changed independently with no way to lock the aspect ratio. The Scale option is available on some markup types such as snapshot. Since you are permitted to change the width and length, there is already a way to scale things, but it is really tedious.
Also when you change the width or length of markup groups, it automatically keeps the aspect ratio if you change one the other will automatically change, but the user is not told that will happen and it is the opposite of what happens with all other markup types.
If you add a lock aspect ratio option that will allow the user to choose what behavior they want when changing width or length. Then if Bluebeam needs something like markup groups to scale uniformly then you can disable that box with it checked, that way the user knows what behavior to expect.
