Add Price Markup Option to Individual Shipping Services

We would like to be able to markup shipping prices for individual shipping services.

For example to be able to add a $1.10 markup to UPS Ground and a $2.25 markup to UPS Next Day Air.

This would help us to level the playing field because some shipping services are more labor intensive to process than others are. For example with Next-Day Air shipping we often have to call the buyer to inform them that a package shipped on Friday will not arrive until Monday and ask them if that is OK.