Thank you. I see the following example: nnnHow can I do the top and bottom combined? In my file I am trying to update the transient x,y,z velocity profiles are varying time steps and at x,y,z coordinates, like the top, but at an interval of 1s, 540s, and 1140s. I posted my file above. Should I name the name transient-inlet or transient-velocity instead? But can I combine the xyzzy points and velocities with the time column?.Thanks,nAlexn