Just fill out the details and click Start. If you are ressing 4 chars and want each done 300 times, just type 300 in and the program will do 1200. Unfortunately it is not minimizable at the moment and you must go afk/watch it.
Key 2 is if you have 2 different ress skills, to make ressing of multible chars faster.
Just take your char/s to a fast and long range aggro mob, flowers prefered but others like ishades are good. Type in the key to press for ressing, delay in between ress and ammount for each char. If you are ressing multible players you need to be in a party with them, them and yourself ONLY. If you are ressing only 1 char dont tick the checkbox and make sure that char is selected in sro. If there is any problems please tell me.