Jump to file while typing, nested playlists

[HTID]

I finally made the switch from Windows Media Player to Winamp (I downright refused to because of a bad experience with an older version on a previous PC, but I'm really impressed with winamp this time around - well done guys!), but I feel it's missing two options that I used constantly and loved from media player 10 --

1. When you type and the playlist is active, it would automatically jump to the file that matched what you'd just typed. Instead of having to open up a search box, you just hit the letter that your song starts with and then hit enter to play it. So simple and quick to find songs. It also had the ability to recognise that if you hit "s" followed by "a", you were searching for songs that started with "sa", not searching for songs that started with "s" and then doing a separate search for "a" songs. This meant you could just type the name of your song to find it.

2. Nested playlists. In WMP10 I had my playlists like this:

Albums
+ Bonkers
+- Disc 1
+-- File 1
+-- File 2
+- Disc 2
+-- File 1
+-- File 2
+- Disc 3
+-- File 1
+-- File 2
Genres
+ Hard Dance
+- File 1
+- File 2
+ Hardcore
+- File 1
+- File 2
+ Hardhouse
+- File 1
+- File 2

And so on..
Sorry about my shoddy drawing of a treeview. I hope you understand how that's supposed to look and behave. Ask if you need clarification.

Apologies if winamp has these suggestions and I just haven't found them - it has so many options I'm a bit lost at the minute :P