I would like to see a Special Features Window added.

The lower section would be a duplicate of the current Cast and Crew section. Episode Dividers would be used to note the Featuretttes and/or documentaries, commentaries, interviews and Picture-in-Picture  that they are in. Important thing is that the cast & crew wouldn't count in the CLT.
Perhaps ad additional section in the lower section would be called Trailers and allow entry for all the trailers that are actually on the disc, thus BD-Love downloaded trailers wouldn't be included.

The upper section would be like the current overview section, but broken up into sections. It would allow the entry of the studios of the featurettes/documentaries and the featurettes/documentaries would be entered in order per disc menu and the total running times of all the featurettes/documentaries would be entered. Running times of Picture-in-Picture features wouldn't be included.

Again all cast or crew wouldn't be entered into the online database so that they won't screw up the CLT results.