For all the posts I appreciate the input. Now, I must confess that I erred in forgetting that this was for when you shop a player around and click on the trade for the offer.
I know that this is what the AI at that time finds acceptable, but having the ability to ask for a kicker of $100,00 or any amount would be nice without the need to redo the players, etc. I view shop around as the foundation of a trade and trying to get those few fringe players, money, etc., in the deal as part of the fun.
Sorry for not clarifying that in my first post. I was channeling my inner Pascual Perez on Interstate 285.