OceanWp: Blog Filtering

Hi,

I have two questions concering a blog from OceanWP:

I would like to filter the blog articles on the main blog page based on the category, so that only my selected categories are displayed.
Using the WordPress widget settings for “Recent Post” I can do this modification for the sidebar of each blog article, but this does not cover the main blog list.
(Just deleting the articles is not an option, I refer to them on the main page, but would not like to show them additionally in the blog.)

The second question is related to the “number of comments/comments deactivated” part – I do not want to display that. In Customizer ->Blog -> Single Block Entry I only selected date in meta, but this does not help.

Using custom css code

.oceanwp-recent-posts .recent-posts-info, .blog-entry.thumbnail-entry .blog-entry-bottom {
    display: none;
}

I can delete the comments AND the date, but I would like to keep the date.

Any suggestions how to solve this?

The page I need help with: [log in to see the link]