Next - Previous in one row?

You would add this function: https://gist.github.com/generatepress/dc79fa83d8706f19365aa07ddd141cd3

Then this CSS:

.post-navigation img {
    width: 50px;
    display: inline-block;
    vertical-align: middle;
    margin: 0 5px;
}

The styling might need some tweaking, but that should get you close :)

This is all I needed, I'll handle the css ;). Thank you so much Tom!! keep up the great work and the amazing support you're giving, for real!

Glad I could help! :)

Hi Tom,
This is great! I have a small correction. I was trying to get it to work but the images at the bottom were both of the previous post. So I did some digging and found that line 34 should be:
$nextPost = get_next_post();
(It currently says: $nextPost = get_previous_post();)
I changed it and now it works perfectly!
Thanks again!
Best,
Callista

Glad you figured out :)