Pretty intuitive, change the sliders. Hide the sliders by using the handy button on the right bottom corner. press r to make everything go to a random place and random direction. this is basically useless, since you cant use it with particles with a lot of code. and because this is slower than the clone system. it just makes it so you can have more than 200 clones.
I just thought about possibly bypassing the clone limit by instead of using clones, using a list to store all the variables how it works: at the very start of the program it checks if the amount of particles being rendered is the particle variable. if it isn't, it in/decreases the amount of particles. there is a list, in which there are the amount of particles items. each item is this: "x,y,angle," there then is a repeat lengthoflist times loop, which basically does this: 'scan' item number particle# of the list by checking if a character is a ',' if not, combine currentx with that caracter, if it is, start doing the same but for currenty. then it repeats that for y, and angle. then a 'drawer' goes to currentx, currenty, and points at currentangle. it repeats speed times: move 1 step if on edge bounce (this can be replaced for any code the clones will be running) and it repeats that for every item in the list.