We have checked the Website URLs provided, to create a separate second menu you can create text area within the menu in TemplateToaster and create hyperlinks with links to your category pages.
Go to TemplateToaster -> Menu -> Text area -> Create text area within menu -> Double click to edit -> Create Hyperlinks -> Add link to your category pages using internal page option.
For more help regarding internal page option please refer to point no. 11 in the following link:
https://kb.templatetoaster.com/editor-tab-templatetoaster/