Schema Premium has support for schema.org Course type that allows you to add schema markups and structured data to pages about courses on your site.
Follow these steps to add the new markup type
1- Create a new Schema markup
The very first step is to go to Schema > Types, and click on the Add New button.
2- Select schema.org Course
The next screen will open the quick schema,org creation wizard. Select the schema.org Course type from the drop down list.
When you are done selecting; Schema Premium will confirm the creation of the new schema.org type, and you will have the choice to go through next steps, which is configuring the schema.org types you’ve selected.
3- Configure schema.org Course
Create a set of rules to determine the target of this schema.org type. Most likely you will want to configure this option to enable schema.org type on a specific post type where you list courses, or maybe just a single page.
3-B- Course Properties
Optionally; this section allows you to configure schema:Course properties.
4- Update Schema
Click on the Update button to update schema.org type.
5- Test Structured Data
Test your schema.org markup in Google’s Structured Data Testing Tool to make sure it’s valid. You can test your markup with a simple click.
Here is an article explains how you can test your schema.