Universal Media Server | Forum

Hello, I am new to the Forum so hello everyone. I was so happy not long ago when my played files started getting marked with a circle with an arrow. I have long wanted this feature. It is so convenient to know at a glance with episodes have been watched already. It was so disappointing when the feature disappeared after updating UMS. Can someone please tell me how to activate this feature again? I'm don't see the option and am afraid of digging too deep in case I foul something up.
Thanks so much!