I wanted to get the hacking lessons out of the way. thought I'd do a few a day, not all of them in a row. Got my hacking skill to over 300. I only tried it because you can line up the hacking lesson button and the progress buttons to some degree so i didn't have move the cursor. Just hit a shortcut, leave it going until a certain level and turn it off. It didn't go the way I planned it. You can also use it when talking to the main girls. Line it up over the option you plan to spam and start it up. I also went through the story lines of the main characters to some degree at one point and lost my progress. Was trying to get back to where I was as fast as possible.