Visual Studio Xml comments plugins

Does anyone know if there exists a Visual Studio(2010) addin/plugin that can help with managing xml documentation comments ?

Features I'm looking for:

• being able to hide/show xml comments in the code (scrolling through it makes me want to hit my laptop with a hammer)
• some GUI for editing those comments and an indicator which methods/classes are already documented - like an icon/color change/sth
• make it easy to build documentation eg. html/pdf/...
• anything else that can help

I'm not sure if this question fits on Stackoverflow, but I wasn't able to find a more suitable Stackexchange site for this and since questions can be moved between sites please move it if it's not in the rig开发者_开发技巧ht place.

I use GhostDoc to help write the comments and SandCastle (w/ Sandcastle Help File Builder as the GUI frontend) to generate html documents from the xml comments.