Various Listings Questions

Hi!

I have been trying to work out several things myself but I now need some help please! Most of these questions relate to the listings;
1) Can I alter the elements within the Toolbox on the individual listings page?! I want to remove ‘Views’
2) Is it possible to alter ‘Comments’ throughout the site to be called ‘Reviews’ instead?
3) Is there a shortcode to place categories on a landing page in a nicer way than just a list?!
4) Featured Listings on the homepage: it seems to only show 3 of them, but I need it to show all of them?!
I hope someone can help before I tear all of my hair out!!

Thanks in advance!