From ArchWiki

If anyone is current with the state of kdemod3 as it relates to this page, they should jump in and revise it, as it may take me quite some time to get up to speed with this as I only had kdemod3 installed for 2-3 days before jumping on to kde4.1 and never made it KDEmod4.

Also, I would suggest moving this page to "KDEmod3 Desktop Tricks" and creating a new "KDEmod4 Desktop Tricks" as their are likey to be major differences between them.