The Amp Simulation editor will allow you to change the pre gain, low-mid-high levels, as well and the presence, output level and Master volume. (See Screen Shot) The model of the amp can also be changed in between American and British styles of amp sounds. 6 in all. Am. Clean, Am. Gain, Am. Bright gain and their British counterparts. Set up a new software instrument track with only a grand piano. Select this as your edit for that instrument and play with it. It will show you the range of manipulation that you have for amping the instrument.