Multiple time-step variables

• timeStepFactor $\langle\,$ Compute this colvar once in a certain number of timesteps$\,\rangle$
  Context: colvar
  Acceptable values: positive integer
  Default value: 1
  Description: Instructs this colvar to activate at a time interval equal to the base (MD) timestep times timeStepFactor.[57] At other time steps, the value of the variable is not updated, and no biasing forces are applied. Any forces exerted by biases are accumulated over the given time interval, then applied as an impulse at the next update.