Storyline Tab W/ Hide Completed
 

Here is a quest journal with the storyline tab having the hide completed storylines checkbox. I am sure it will be on the updater soon. If you do not want to wait you can download it here.

Silat

The version attached to this post is themed to make the storylines tab match the active and completed quest tabs in appearance as well as to add the storyline hide completed checkbox. This version should appear on the updater and replace the one from last night ;)

Silat