[carpeperdiem]

Use webmaster mode.
Tools > Webmaster mode

Hover over the templates listed in the popup. You will identify the template that is used to make these menus. Open the template that is the parent of the menu tpl.

You will see an include for the template file (.tpl) that is this horizontal menu.

comment it out

(* this is a commented out line of code *}
this is not

make webmaster mode your BFF. I have been using xcart for 7 years and it lives in its own tab, permanently.

in addition to template structure, webmaster mode also can reveal variables in use
it's an invaluable tool

hoep this helps.