The console is a basic text parser that allows commands to be run and settings to be changed without having to load up the game's (very limited) menu system. Click OK, and the console will be fully enabled everytime the game is loaded. Next, click on Set Launch Options, and add in -console on the next popup. Under Steam's Library tab, right click on Vampire: The Masquerade - Bloodlines, and click Properties on the dialog box. The console should appear when you start the game, and can be accessed using the tilde (~) key. Append -console to the end of the target, outside of the quotes (ie, 'wherever you have this folder installed\Vampire - Bloodlines\vampire.exe' -console). Right click the desktop shortcut and go into properties.