I have some questions

Love the site it is amazing really easy to wok with but i have a few questions and then the site is complete!
rather than list loads of questions i thought i would mail them all in one post 🙂

How do I centre videos in posts?
Can i show authors name instead of nickname?
Since adding a video on the homepage gifs have stopped working.
How do i centre text on subscription widget?
Not sure if you cover these…
Woocomerce carousel slider is missing navigation buttons
Woocomerce how do i change “buy” button as it currently says buy now as text.

Thanks in advance.

Daniel