Close Categories with "Arrow up"

[Otto0815]

Hi,

i would like to have an second Arrow close to the Categories,
like now with the "Arrow down" for showing the sub-categories...

It would also be nice to scoll the page down after you click the "arrow down" button; so you could see all sub-categories without to scroll down on your own...

Can anyone give me an hint how to solve this?

Thx