• Custom Post Type Speaker:  Switch to Off to disable the  Post Type Speaker.
• URL Rewrite: The name displayed in the breadcrumbs when you view the single page.
• URL Rewrite name: The URL Rewrite name will appear in the rootline/breadcrumb.
• Category URL Rewrite: The name displayed in the URL when you access the speakers archive, such as a speakers category.

After changing this field go to Settings → Permalinks → Save Changes.

Category URL Rewrite and URL Rewrite can’t share the same name.

• Number of Speakers per page: Set how many Speakers do you want to display on speaker template.

• Speakers Page: Select the page you use for displaying speakers to link to it in the breadcrumbs.