def METHOD_NAME(indir, destdir, steps):
    """
    Copy step folders renumbering them sequentially in the run directory.
    The content of the files is not modified.
    See :py:func:`rename_step_contents`.
    py:`gear.zerofill.zero_fill`: must be previously calibrated.
    Example
    -------
    >>> steps = ['0_topoaa', '4_flexref']
    >>> zero_fill.set_zerofill_number(len(steps))
    >>> copy_renum_step_folders('run1', 'newrun', steps)
    The initial structure::
        run1/
            0_topoaa/
            1_rigidbody/
            2_caprieval/
            3_seletop/
            4_flexref/
            (etc...)
    Results in::
        newrun/
            0_topoaa/
            1_flexref/
    Parameters
    ----------
    indir : str or Path
        The input directory where the original steps reside.
    destdir : str or Path
        The output directory where to copy the steps to.
    steps : list of (str or Path)
        The list of the folder names in `indir` to copy.
    Returns
    -------
    list
        The new paths created.
    """
    new_steps = []
    step_names = (Path(step).name for step in steps)
    for i, step in enumerate(step_names):
        ori = Path(indir, step)
        _modname = step.split("_")[-1]
        dest = Path(destdir, zero_fill.fill(_modname, i))
        shutil.copytree(ori, dest)
        log.info(f"Copied {str(ori)} -> {str(dest)}")
        new_steps.append(dest)
    return new_steps