Note volume/velocity

How do you adjust the volume/velocity on specific notes?


Maybe my question was fuzzy so i’ll try to rephrase it.

When im using a 808 sample i can just change the velocity of different notes in the piano roll, but since the piano roll is not “connected” to sublab i can’t use the same technique.

Is there any way to change the velocity on specific notes in the sublab program or should i record the sample and use the technique described above?