Aegir content types extra fields Is there an official way to add extra fields on a content type on Aegir.
To be more accurate, I want to a comment (text) field for the 'sites'.
It's Drupal, so yes you can add an extra field to the site content type on /admin/structure/types/manage/site/fields.

Warning: you must enable first the field_ui module, as it's disabled by default in Aegir installation profile.

I started a documentation page about this: http://docs.aegirproject.org/en/3.x/extend/frontend/