Feed of changes to specific WorkItem type

I'm trying to configure a Widget on the Dashboard to show recent changes to all workitems of the type Defect.
I've found the My Work Item Changes Widget and with it the URL:
${server-URL}/service/com.ibm.team.repository.common.internal.IFeedService?itemType=WorkItem&user=${current_user}
Here, I have removed the user part so as to not limit the scope to just me, and now I would like to just have the Work Items of the type/id Defect shown - is there any way to do this? Or is this not possible neither with this Widget or with any other?
Thank you
Stine
Accepted answer

Stine,
for this trick you will need an RTC Eclipse client.
In your project area create a shared query "All Defects" which only filters on work item type = Defect.
Now open Eclipse client, log into project area, right-click query and choose "subscribe to query feed".
Identify the feed subscription you just created in Eclipse, right-click and > "copy feed URL".
Use this URL as input for the generic news feed widget on the dashboard and you are all set.
I just tried in RTC 6.0.4, works like a charm.
If this solves your problem please mark the answer as accepted.
- Arne