Hello,
1. We usually use Better WordPress Minify plugin for this purpose.
2. Here is an instruction to this question https://stackoverflow.com/questions/39287308/woocommerce-remove-downloads-from-menu-in-my-account-page
3. Sorry, but there is no such option in our theme and WooCommerce plugin.
4. Could you please provide us a screenshot to this question for better understanding?
5. This question is not quite clear for us as well. What welcome page do you mean? And what do you want to do with Top rated product page?
6. Contact plugin’s developers for help with this question since it is not related to our theme.
Kind Regards