This video demonstrates how to add continue pavement markings through an intersection. It involves Deleting one side of the pavement markings on the mainline, then stretching out the other side the length of the mainline.
Click the video below to play it. To view in fullscreen mode, first click the YouTube link at the bottom of the video to launch the video on the YouTube site. Then, click the fullscreen button (rightmost button at bottom of video).
Additional information on ConceptStation located here: https://www.bentley.com/en/products/product-line/civil-design-software/openroads-conceptstation