You can add a custom menu widget to a page's sidebar in three easy steps:
Step 1: Add the custom menu
You can follow this guide: How to manage theme navigation, menus and custom menus
Step 2: Add the Custom Menu widget to the page's sidebar
Add the Custom Menu widget to the appropriate widget area.
You can follow this guide: How to create sidebars and add widgets to them?
Step 3: Enable the page's sidebar
Enable the default or the custom sidebar in the page's local Vamtam options.
