Showing actual quoted ccy

Showing actual quoted ccy

We work with several currencies apart from our base currency
1) The reports show the base ccy instead of the quoted ccy for both potential and quote amounts. Is there a way to change this to the actual quoted ccy or add a converted field.
2 Is it possible to change the default ccy to USD instead of the base currency. Not of our transactions are in dollars.
3) Looking back it would have been helpful if I could change the base ccy to USD.  
thanks

Steve