In LTI 1.3, copying a course that has been integrated is fast and easy. In fact, you should fully integrate one copy of your course in your LMS before making any additional copies.
Get started with LTI 1.3 integrations here:
For example, if you need 3 sections of your BIO 101 course, complete the integration process above that corresponds to your school's LMS for one section, then complete the LMS cloning process as many times as needed to create additional sections. Do not attempt to integrate the same course SKU multiple times as that will cause conflicts with your LMS and Cloud.