Enhancements with adding “HREFLANG” Tags

Hello,

First of all let me say that this plugin have saved me a lot of headache with all the different HTTP Headers and it’s very simple to use, Thank you for making this plugin!!

One enhancements that is missing in this plugin is “Hreflang Tags” once it can do also that it’s a full HTTP Header control…

Do you think it’s possible to add such functions?

Thank you.