Apple Logic Pro 8 - Manual (Page 468)

468 Chapter 20 Editing MIDI Events in the Transform Window
 Set the desired velocity values in the Operations area, ranging from 1 to 127.
 If you want a less dynamic crescendo, set a smaller value range.
 To perform a diminuendo, set a higher value in the top Velocity field, and a lower
value in the bottom field.
Scale 14 Bit PitchBd
Scales pitch bend data, keeping the 14 bit information intact. The length of pitch bend
events is expressed as a decimal value ranging from –8192 to 8191, and this is the 14 bit
information that is retained.
 Choose the desired multiplication factor for the fine pitch bend (LSB) and effective
pitch values (MSB) in the top value field shown in the Operations area
 Set the (14 bit) value in the lower field, which is then added to the scaled (multiplied)
events.
Double Speed
Doubles the tempo by halving event positions and lengths. By default, the Div(ision)
value fields for the Position and Length operations are set to 2.0000.
Change the values in both fields to 4.000 to quadruple the tempo.