I am currently using the Lodestar theme. My website is built up in a way that the navigation bar at the top leads you to different pages which have a one-page static structure. To allow for navigation in each one of those pages I am searching for a widget that allows for inner-page navigation. Meaning that if you click on a title in this navigation widget you jump in the same page to a specific block.

I have an example here that might give you an idea what exactly I am looking for:

http://globallearningfactory.com/industrie-4-0/

Thank you