I used the guide of the creator. The one that comes with the other files, I don't really know what i did just now but it works now. So thank you for your patience! I managed to make it work!
Well the PC is not showing any other option that Someone's PC and mine. I did exactly as the guide asked me to (Not that is really that hard) but i still don't get access to the Sandbox... What could the problem be?
Thank you for the quick response! But i guess i'm doing this wrong or i don't really know. I installed the files as the guide says yet i don't any new NPC nor option on the Grand Hall PC next to the nurse to access the Sandbox.... Am i doing something wrong?