Cross site collection navigation

Notice. This model only works with so called classic UI experience on OneDrive for Business sites. More information on the difference and changes introduced during October 2015 from following web case: http://dev.office.com/blogs/pnp-web-cast-onedrive-for-business-customizations.
Demonstration for so called hidden app part model for customizing OneDrive for Business sites automatically in the Office 365. This video is based on following contribution in the Office 365 Developer Patterns and Practices, which was part of the January 2015 release.
Demonstrates following techniques with Office 365 and app model:
If you have any questions, comments or feedback; please use the Office 365 Developer Patterns & Practices Yammer group for the input.