New component property not displayed

Hi,

I've developed an SNMP based ZenPack for OpenVMS. It's based on the tutorial (NetBotZ).

I've added a new property to the device component (disk).

When I run the query on Zendmd, I can see it's populated:

>>> device = find('Pinky')
>>> for disk in device.disks():
print '%17s: %-17s %-11s' % ( disk.id, disk.snmpindex, disk.size)
PINKY$DKA0: 7 139979
PINKY$DKA1: 8 699910
PINKY$DKB0: 9 0

The web interface shows the components correctly, but not the size parameter. The column is there.
When I debugged the traffic, I see that the browser is requesting the value:
{"action":"DeviceRouter","method":"getComponents","data":[{"uid":"/zport/dmd/Devices/OpenVMS/devices/pinky","keys":["uid","name","status","severity","usesMonitorAttribute","monitor","monitored","locking","size","uuid","uid","meta_type","monitor"],"meta_type":"OpenVMSDisk","name":null,"page":1,"start":0,"limit":50,"sort":"name","dir":"ASC"}],"type":"rpc","tid":307}

But it isn't in the response, not even with empty value. (I cut out the other two components' result):
{"uuid": "96e8bd71-ac25-4007-8fb3-9ef3b9ed7fb0", "action": "DeviceRouter", "result": {"totalCount": 3, "hash": "3", "success": true, "data": [{"status": "Up", "usesMonitorAttribute": true, "monitored": true, "severity": "clear", "locking": {"updates": false, "deletion": false, "events": false}, "monitor": true, "name": "_PINKY$DKA0:", "meta_type": "OpenVMSDisk", "uid": "/zport/dmd/Devices/OpenVMS/devices/pinky/disks/PINKY$DKA0", "uuid": "87544703-c307-46e3-8fc7-0417ba1d72b5"}, "tid": 307, "type": "rpc", "method": "getComponents"}

What should I check How can I debug the API.
At first which daemon responses these requests

cheers
Zsolt

UPDATE
Found half of the answer: I forget to declare the property in the IInfo. And then restart the relevant deamons.
Now I can see it on the GUI. What I still can't do that using it in a threshold. here.size doesn't work. :(