How to duplicate Kelvin and Virginia and have a whole army.
Duplicate Kelvin and Virginia
You must activate the console and then type the following:
addcharacter robby 1
addcharacter virginia 1
1 = you will spawn one of them you can change into any numbers if you are confident in your computer setup.
You can use the chat to input commands by pressing Enter:
/addcharacter robby 1
/addcharacter virginia 1