Setting up Dlna on Readynas ultra 6

I have just upgraded firmware from 4.2.31 to 6.xx

I can't seem to find a function when setting up dlna that was in firmware 4.2.31 but doesn't seem to be in 6.

I have a share called videos, but only want to make a certain directory in that share available via dlna.

The only setting I can find in os 6 enables the whole share.

Has this function been removed.