Great care should be used when altering the Drupal website, especially Student Life sites.

You should always always add a page to the menu while editing the page, NOT going straight to the menu system page.

Setting the Parent Link to <Main navigation> will result is this page getting a top level menu position (more than likely you don't have room for this by now)

Selecting a Parent Menu Item here will assign this page a Sub menu. For example, if the page title is My cool page and you chose About Us in the parent drop down list you will get a url of https://drupal.gatech.edu/about-us/my-cool-page automatically! This is what you want. This helps with the analytics because we now know you have a page called My Cool Page that lives in the About Us parent menu