Can not see "Front Page" listed under 'all pages' using Gillie Theme

I am trying to have the front page of http://vip.MYURL.com protected via Membership2.

When I go to ‘All Pages’ the front page does not show.

1: Why is that?

2: How can I set the front page to be visible by only ‘VIP Members?’ (have a look – Support Access is granted)

Please do NOT refer me to those “Password Protected” and “WP Site Protect” plugins. They do not work well with multisite

I have NOT made any custom code edits

I am aware of the wpmudev blog entries example https://premium.wpmudev.org/blog/how-to-make-a-site-private-in-wordpress-multisite/

I would like to know specifically:

When I go to ‘All Pages’ the front page does not show.

1: Why is that?

2: How can I set the front page to be visible by only ‘VIP Members?’ (have a look – Support Access is granted)

Thanks in advance