Metadata for renaming

Is there any way to add video length (duration) in a title?
I did not see a metadata item in the list.

Not yet, it’s an open request. Feel free to vote for it to prioritize requests. Also what duration? Pre conversion, or post conversion?

We’ve also added a new feature in the latest 2.5.7 beta build where it gives you a drop down list of all metadata options while typing in a renaming pattern.

Post Conversion duration.