From: Karteek K. Bejagam (
Date: Thu Oct 01 2020 - 03:02:18 CDT


VMD is useful only for visualization purposes. You might have to use some
keyword such as add force (,
if you are using LAMMPS in particular.

Alternatively, If you have a trajectory and want to move atoms or molecules
in VMD.

try moveby command to displace the selection

On Thu, Oct 1, 2020 at 1:54 AM Basanta Acharya <>

> Dear all,
> I want to apply some force on water and some ions along Z direction. How
> to write tcl force script ?
> Regards,
> Basanta Acharya
> Tribhuvan University, Nepal
> mail address :