Hi Bernice,
There is a method that you can try to add multiple SCOs in the same course, and that is to add the SCOs to your course as web objects. You'll want to publish and upload your courses to your LMS individually, and then use the web object feature to add multiple SCOs to a single course. When prompted to add a web object in Quizmaker 360, you can use the link to the course generated by the LMS. Keep in mind that we don't officially supported this method, so we'll have to wait until the feature request is completed for an official method to be available.