OpenTunnel Designer Help OpenTunnel Designer Workflows Drawing Workflow Attach TabReferences, Raster Images, Point Clouds, and Reality MeshModifying Raster File AttachmentsReprojecting ImagesEditing Tools and Reprojected Rasters Editing Tools and Reprojected Rasters Touchup Tools ? Reprojected rasters are not valid for these tools. Merge and Corridor tools ? These tools are not blocked, but the tools read the data as it is displayed in the view.