[HECnet] pydecnet zero counters

I am happily running an instance of pydecnet (1.0-486) to connect my simh VAX cluster and various other stuff to HECnet (ONAPI4 29.206) For management purposes, I'd like to periodically zero the line/circuit/node counters on ONAPI4, but the node does not respond to the "NCP tell ONAPI4 zero <xxx> counters" commands. Looking at the python code, I saw some hints bit I can't get my head around how to do this, either using the pydecnet api or remote NCP Any help here? *Wilm*