Ok, so I was thinking of documenting some stuff I found useful for making this wiki great and where to write them down. So I'll now try this blog function.
This first entry is about a collapsable spoiler. There's no wikitext for doing this, nor any button, but you can put some easy html code into the page. Just like this:
Isn't this cool?
For some more advanced options, see w:c:community:Help:Collapsing
If you don't see anything there, you may need to click "Read more >"Read more >