Tracking/Notifications Allow multiple Tracked lists, and/or allow sorting by category

[smallstonefan]

I tend to build a large tracking list in-between updating my game with new mods (my current playthrough has 1,352 mods installed). Multiple tracking lists would be amazing - so I could do things like have a list for my next build, followers, textures, etc. 

It would also be helpful when looking at my tracked mods list to sort or filter by category - again, to do things like just look at the follower mods I'm tracking or balancing mods. 

Thanks for considering. :)