Overscan in silhouette

So I imported a plate (windowed exr) with overscan data inside silhouette. I used ROI for extending the viewer into the overscan areas.
My work is to do roto including the overscan areas, but my roto layer transform indicators exists till the plate resolution, excluding the overscan area. Is it this way the software works or is in progress to rectify that?

On my overscan plate, expanding the ROI to the overscan area flows through to the Roto layer transform. You can also use a Transform > DOD node after the source node. If you send me a link to one of your files, I will take a look.