How to add internal links / in app links in Custom Pages or Pages?

This functionality allows you to create links to a feature in your app from another feature.

While in Places, or a Custom page view the in-app link button in the editor window:

To open the option from source code , click on the insert in-app link button:

Once you have  clicked this button , a new menu pops up:

Select the feature you want to link, press OK and it’s done!