How to enable DNLA server

Hi all I have just updated to os 5 but how to i enable the DNLA server on the on line manual it says go to settings the under media tab enable it but i have not got a media tab

If you are using OS 5 see the online OS 5 user manual:

https://products.wdc.com/nas0s5/nasum/en/

You may have to install the Twonky Server App on the App tab if it isn’t installed already.

My Cloud OS 5: How To Install 3rd Party Apps
https://support-en.wd.com/app/answers/detail/a_id/29396

My Cloud OS 5: Twonky Server Configuration and Settings
https://support-en.wd.com/app/answers/detail/a_id/30285

My Cloud OS 5: Online User Guide and Solutions
https://support-en.wd.com/app/answers/detail/a_id/29633