Instructions
Make a shortcut on your desktop for "Dragon Age: Origins." Call it "daorigins.exe."
Right-click and go to properties. Under Target, add "enabledeveloperconsole." It should look like this: "C:\Games\Dragon Age\bin_ship\daorigins.exe" -enabledeveloperconsole."
Find the key bindings -- "keybindings.ini." This will be located in "My Documents\BioWare\Dragon Age\Settings\."
Locate "OpenConsole_0=Keyboard::Button_X." Change the "X" to a button that is not already used in the game.
Save. Start "Dragon Age: Origins" using this shortcut.
Press the key you changed "X" to. Type the following code: "runscript zz_addparty."