How to reset time step number in unsteady cacluation?

Sometimes, the time step number needs to be reset in unsteady flow calculations. For example, when the time step size has been changed and the user wants to autosave files based on the new time step size.
A rpvar command is available. Type the following in the FLUENT window.

(rpsetvar 'time-step 0)

'0' is the new initial time step number for the current session. It could be any number other than '0'.

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