Dashboard widget order custom and affiliate widget

How do I hook in to custom widget and affiliate widget in the Dashboard Widget Order plugin?

$dashboard_widgets_order_left_column[] = ‘CUSTOM WIDGET’;

Also I am not clear on

// Change this if you update the widget order and want all users to have

// the new order instead of just new users.

// Note that this will overwrite the custom widget order users have

// configured.

$dashboard_widgets_order_hash = ‘m9c0u203b7u0338u10zxnm0q’;

Do I just change the hash and save?