When making lengthy prototype flows for desktop that require modals, I have to manually hunt down all interactive components residing underneath a fade layer that visually separates body content from modal content in the z-index and directly remove the interactions from them. Depending on the layout below the modal fade layer, this can be a tedious and time consuming process, as sometimes modal flows themselves are lengthy, which means repeating this interaction removal process a great many times on top level frames in the flow.
It would be awesome to select the modal fade layer and apply a setting to it that makes Preview ignore interactive components that are underneath said layer in the z-index. This would reduce the number of interaction removals to ~1% of what it normally requires.