I want my header image to link to a page other than the home page. Right now, I have the homepage set to HTML redirect to the page I want. Is there a better way to do this?
Sorry but there is no such option, so, without template files changes this is not possible
Is there a way to edit the template file?
Sure, you can edit any file of the theme, but you don’t forget to make your changes in the child theme,
the file you need is a header.php