Dear all,<br> could anybody help me out with the following issue. I have a trajectory file.i have to used that file at a particular frame as the input to continue the simulation and i need to use that file for 20 independent simulations.since the starting file for the 20 simulations are the same coordinate and velocity the 20 simulations are producing the same output trajectory.so is there a way to change the velocity by a small value in the input trajectory file so that every time i can get a diff trajectory from same input file.<br>
<br>reagrds,<br>sree.<br>