I'm hoping someone can maybe assist me.

I've downloaded a template for UBNT Airmax which works perfectly, however I would like to add a new DCI that "counts" the amount of wireless stations. I tried to modify some other script but I failed. Is there anyone that can help point me in the right direction?

currently I have this, but Netxms says its unsupported

walk_oid = ".1.3.6.1.4.1.41112.1.4.7.1.1";

tube = CreateSNMPTransport($node);
if (tube == null)
  return null;

varbinds = SNMPWalk(tube, walk_oid);
if (varbinds == null)
  return null;

return varbinds->size;