In DirectLink for Reason and Record User Guide, on page 23, "Pad 4 - Velocity" has 8 parameters listed. They do not correspond to the real picture of Reason.

The documentation lists the knob assignments for Malstrom as follows:

E1 - Velocity Target
E2 - Velocity To Level A
E3 - Velocity To Level B
E4 - Velocity To Level B
E5 - Velocity To Filter Env
E6 - Velocity To Attack
E7 - Velocity Shift
E8 - Velocity To Mod

The actual mapping is as follows:

E1 - Velocity Target
E2 - Velocity To Level A
E3 - Velocity To Level B
E4 - Velocity To Filter Env
E5 - Velocity To Attack
E6 - Velocity Shift
E7 - Velocity To Mod
E8 - n/a