Note: Support provides this information in order to assist in your desired goal. We cannot assist in suggesting proper canonical tag implementation or advise on SEO. This article assumes you understand the functionality of canonical tags and understand how to edit KTF files for your site. Support cannot assist with editing your KTF files.

In order to use canonical tags, the KTF file of your site would need to include the following tag in the head section:
<link href="<kintera:var name=bin_comment htmlRemove=true />" rel="canonical" />

Then, the URL you want to specify would be added to the Comment section of the Properties tab in the Web Feature. Only one URL can be entered for any given web feature.