How to view all VSTs at once?

By accident today I pressed a key or clicked on something and was able to view all my VSTs/Plug ins at once in Cubase 4. I’ve tried to google it, but couldnt find anything or how I did it. Does anybody know how to view them all at once instead of clicking on “More Plug-ins” Every time ?

When clicking a selection pane? If so, where? Screenshot?