He wants to use the card as swap as well. Formatting from File Manager won't do that.
There are many ways to skin this cat. Have you seen the wiki page?
You can of course use parted on the device but a more newbie-friendly option is use GParted to partition your SD card to your liking. If you do not have a Linux machine, no problem. Just download a live CD and boot it on any machine that allows booting from a CD. You may need to enable that in the BIOS first.