For the Custom Menu, your screen shot shows a Content Section, but no Header or Menu Label
Click the Add Content Button to add a new content for the Custom Menu Section, name the new content area:
Menu Label
add another one, and name it:
Header
in the Menu Label Content, add the text you would like to show in the menu.
for the menu issue, add the following CSS to the webassist/themes/RelicVintage1/css/configurable.css file:
#cssmw ul.level-2 > li {
margin-left: -14px;
}
to change the order total size, edit the webassist/plugins/shopping_cart/cart.css file
add a font size tothe .cartSummaryWrapper .details table td.total and .cartSummaryWrapper .details table th.total selectors