It blows my mind how many years Layout has gone without the ability to do this - it’s almost always a headache when composing a site plan and aligning things to lot lines or anything else that is not orthogonal.
The rotate tool in Layout works great the first time you use it. But unless it is text or a shape, when you try to rotate for a second time, the grip automatically defaults to the 0° horizontal axis. We need the ability to set a reference angle for the grip so that we can precisely rotate a second time.
The solution should be as simple as holding down the Alt key when selecting the rotate grip (Alt appears to be an unassigned key) to align the grip with a reference point in the layout geometry, then releasing Alt to rotate the geometry.
Please implement this very basic feature as soon as possible.