How to add or change website’s logo
You can add a logo for your whole website from Theme options > General Settings > General: Or you can set a logo for a specific header from the header builder (WordPress Admin Panel > Headers > Edit your desired...
How to set page or post thumbnail
You can set the page or post thumbnail by adding a featured image in WordPress (from Edit Page or Edit Post page) as following:
How to disable post featured image
You can hide the post featured image from the top of the post by adding this code snippet into Theme options > Layout > Advanced > Custom css:
