The drop-down menus and search boxes found on this page are NOT reusable assets that can be mapped/copied. These are tools that can be created using WIDGETS option found under TOOLS in the navigation bar. On the Widgets page, you will choose the type and style of widget. Once your widget's features have been determined, you will copy and paste the code provided into a Rich Text Box on the desired LibGuide. This page displays a few types of widgets that you can create:
Notes: Doesn't appear that we'd be able to do any customization the Search Box such as limiting by type or subject.