how to collapse other menu than the top menu?

Hi,

in the hot cars template it says that it has support for 31 module positions and that all module positions are collapsible.
Only the top menu is implemented as collapsible, but I can't seem to find any documentation on how to collapse other menu e.g. the right menu.
Can anybody point me to the necessary documentation or explain me how to do this?

Thx

"Collapsible" means that if there's no modules of that position, it will collapse, disappear. It's not related to menu.

Thx. Strange choice of words I must say... "collapsible" to me means you can open/close (expand/collapse) the menu as is the case with the top menu.

So let me rephrase my question then: where can I find documentation on how to apply the "open/close" feature to e.g. the right hand menu or any other menu so I can open/close it like the top menu?

It says "22 fully collapsible module positions"

It doesn't say "22 fully collapsible menus"