Chat window options

[legis]

I should probably be embarassed for asking these questions, but I can't find the answers anywhere.

In HL1 (TFC) it was possible to change the chat fade time, and also to a certain extent what was shown in the chat window part. Basically what I want to do is to get rid of all messages saying "player ... joined" etc. Then I want to remove the chat fade time entirely, or at least increase it. I keep missing chat messages due to the text overflow, and fadeing.

Is this even possible?

 

[toString]

I'm not sure, sorry.
But when I miss a message I find it handy to press the Y or U and you can scroll back a bit to see a message I missed, etc.