I have for my PC home page a different url as with my mobile home page. So, as Google suggests, I should use the link rel="alternate" on the PC page which points to the mobile page. But WordPress SEO by Yoast creates on the PC page a canonical link which points to the PC page. So, as I understand this, in this case I should NOT use the canonical, but the alternate link. And on the mobile page I should use a canonical which points to the PC page and not how WordPress SEO by Yoast does it, to the mobile page.
How can I tell WordPress SEO by Yoast to do this stuff right?
Thanks a lot in advance for your help.