Create custom field to input canonical url in a page What is the best way of creating a custom field for each page whereby the user can input a URL into a field, which then gets input into a rel=canonical element like the example below.

&lt;link rel="canonical" href="{{URL_FROM_CUSTOM_FIELD}}"&gt;


I already have an SEO tab like in the image below, however I am unsure of how to create a custom field inside this tab. 



If someone could point me in the right direction, that would be great, as I am very new to the CMS.
If you truly want to this via a custom field:

Admin &gt; Settings &gt; Fields is where you create custom fields.
Settings &gt; Sections &gt; Edit Entry Type is where you assign custom fields to your section. You drag and drop the field under &quot;Design Your Field Layout&quot;.
You can then output the custom field in your template using {{ entry.customFieldHandle }} for example.

A more common approach would be to code this tag in your templates instead of using a custom field. I can't give you a very specific approach to try with the code since I do not know your site structure and desired result.