Moving the Navigation Menu on the Top

if not you could create a child-theme and use the wp_nav_menu function.

to make
li elements go side by side give them this css rule:

li{
  display:inline-block;
}

to make the nav-menu go to the right of it’s parent element give it the following css rules:

nav.parent-element ul{
  float:right;
  width:auto;/*? correct me if i'm wrong */
}

or:

nav.parent-element ul{
  text-align:right;
}

… could do the trick too. There’s more than one way ??

Also, is there an easy way to exclude certain post categories from showing up on the post page? i.e. if I want to use posts to configure another plugin, but don’t want them to show up for the general public to see.

I tried making the post private, except this prevented the category from showing in the plugin settings…so that didn’t work.

How would I go about creating the child theme and modifying that function?

Thanks!