You can also make links to other pages if you copy and paste original link like this:

---> https://powdertoy.co.uk/Discussions/Thread/View.html?Thread=21858

You can put images in thread if you do this:

(img src="image adress">    "(" have to be replaced with "<"

{c:saveid|sometext}

That creates a sign which links to saveid (which is a number), displaying sometext.

idk ether