go in and space if you want to skip the first part chooses something and it will pull up a screen, just change the slider. to get out of the particle motion screen press space NOTE: Some times after you change tempter you will have to click some where else for Space to work
Sorry about every thing not being to accurate with picture but there hard to get by and get right but its just for the general idea. I will try to make the particle motion better there are some bugs some times and its not quite accurate but its for the idea.