You can easily change the position of a button if you are familiar with liquid code. You can do this by adding:
<span id='mf_button'></span>
to anywhere in the liquid file(product-template.liquid).
We would be happy to make this change on your behalf if you can give us access to your account and give us Theme access.
You can create an account over here https://help.shopify.com/manual/your-account/staff-accounts and give us only Theme access.
Also, please send us an email with information about where your button should appear and please provide your shopify url too.