Greetings!

I am trying to add an additional, second row of three boxes to the Participate box on the Victory theme. Here's the site. 

The documentation for the theme says

"The "Participate" call out box will automatically populate with prominent buttons linking to your signup, volunteer and donation pages if they exist. Please note, in order for your volunteer, signup, and donation pages to display they must be set up as your primary pages under your defaults. Go to Websites > Defaults to make the edits. You can add additional call out buttons by clicking Pages > Supporter nav. Buttons you add here will show up in the sidebar on the right."

When I added a page to the supporter nav, it did, indeed appear in the side nav on two-column pages. However, additional buttons did NOT appear on the home page in the Participate box, like it seems to suggest it should in the paragraph quoted above. 

I tried a little direct hackery. I found something on the layout.html file that generates the three buttons, but I've never seen this before:

{% if site.has_volunteer_page? %}
has-vol
{% endif %}
{% if site.has_donation_page? %}
has-cont
{% endif %}
{% if site.has_signup_page? %}
has-cal
{% endif %}

What is this? And how do I add a second row of buttons?

(PS: yes, I know I will have to edit the bg_participate-box.jpg image to accommodate them, as well as adjusting the styles of the box)