Feature Request: Group Subscriptions into Folder-like views

[rayfarias56]

It would be nice to group subscriptions so that people can focus in on a subset of subscriptions. This would especially help those with many subscriptions that update frequently. The grouping of subscriptions could work like the Suops Extension for Chrome. However, then you could use a drop-down box to filter the Subs-Grid page by only the videos in a given sub-group while also filtering away "Watched" videos.

I'm to implement this feature in my "copious free time", but I'd figure I'd put the idea out there in case someone else had time to work on it before I do.