Andrew Heather authored Dec 09, 2019 and Mark OLESEN committed Dec 09, 2019

The optional 'fields' entry can be used to limit which particle fields are
written to file.  If empty/not specified, all properties are written to
maintain backwards compatibility.

    patchPostProcessing1
    {
        type            patchPostProcessing;
        maxStoredParcels 20;
        fields          (position "U.*" d T nParticle);
        patches
        (
            cycLeft_half0
            cycLeft_half1
        );
    }