Is there a way to have more than 20 posts displayed on a blog on 7.1

Site URL: https://asparagus-ocelot-cchc.squarespace.com/

Hi there,

I could really do with some help, here's what I need to do:

• Is there a way to have more than 20 posts displayed on a blog on 7.1? I need infinite scrolling
• I also need for the thumbnails not to click through to the individual blog posts, but I still need a link on the excerpt text to link to an external website for each thumbnail
• Remove the Older Posts > pagination copy/link
• To add a border to the thumbnails. I have this working on my News blog but it doesn't work on this blog, which is basically a panel of logos that can be filtered by category.

So far for the click through problem, I have been told to use this code in a code block:

<style>
  article a {
    pointer-events: none;
}
</style>

Which works but it also disables the excerpt link and the Older Posts > link...

And I've been told to use this code for adding the border, which works fine on one blog but not on the other...

section.blog-image-wrapper a {
    border: 1px solid black;
    display: block;
}

I'd really appreciate some help with this and I'm willing to pay 🙂

Lauren