Hey there,
Remove it all together from posts as author profile should be at bottom of posts ?
I am not sure what do you mean here. Can you explain more in details so that we can have a better understanding of it?
reduce profile header size when viewing EB posts?
ok disabled the mini header, as it was showing full size. How can i make it mini?
Do you mean that you want to make the mini header smaller?
Is there an option to display an author box under the post?
Yes, you can enable it at Entry post settings as shown in the screenshot.
https://take.ms/TNq5p