Editing HEAD tag
My thoughts are that I should be able to open my index.php file and there I would find the <head> tags but it's not there. When I inspect my home page with the inspect element tool in Google Chrome, it shows the file is called index.php and the code shows the head tag, but when I open the file to edit it I get the following:
<?php require 'concrete/dispatcher.php';
For this one, search for 'Tracking Codes' in the search in the top right of the editing bar, and go to that Dashboard page. On that page you can paste in extra code that will be output in the head of every page (i.e. Google Analytics tracking code)
If not I'm happy to dig around anywhere as I've already customised my current theme quite heavily, I just need pointing in the right direction haha.