Material libraries not in Program Files

I've only been using Kerkythea for a few days so this is my first post.
I downloaded & installed several Kerkythea Material Libraries (see below)
& when I'm in Kerkythea they show in the Kerkythea Libraries & seem to work fine (see below)
but when i look in my C>Program Files(x86)>Kerkythea Rendering System>MaterialEditor>Libraries the only library there is "Basic Pack" (see below).
Why aren't they showing in the Kerkythea Program Folder location?
I downloaded & installed several Kerkythea Material Libraries (see below)
& when I'm in Kerkythea they show in the Kerkythea Libraries & seem to work fine (see below)
but when i look in my C>Program Files(x86)>Kerkythea Rendering System>MaterialEditor>Libraries the only library there is "Basic Pack" (see below).
Why aren't they showing in the Kerkythea Program Folder location?