Simply allows you to save some text notes you've made. (Since like all Drizzle data, this is stored in the file ".drizzlesettings.canbedeleted.dat", deleting that file will lose your notes.)
Tells you when some upcoming Pod Portals will occur.
Does some vector summing for you. The number are already inputted, so you can just delete the groups you don't want to use. (Sorry, but to get the list back so you can do the next one, you need to restart Drizzle. Nag me to make this better!) Then click the sum button to get the result. The angle is measured in the number of "arrows" on Minkata's compass rose to count starting from the large one (which is 0), going clockwise.