Go through the following steps to create a new issue type scheme:

1. Browse to the administration console.
2. Select the Issues tab and then the Issue type schemes option. This will bring you to the Issue Type Schemes page.
3. Click on the Edit link for the issue type scheme you want to add issue types to.
4. Drag the issue types that you want to be part of the scheme from the Available Issue Types list and drop them into the Issue Types for Current Scheme list.
5. Select a Default Issue Type value. Note that this is optional, and you can only select a default issue type after you have selected at least one issue type for the new scheme.
6. Click on the Save button, as shown in the following screenshot: