You can easily filter by Author, but if the field you want to filter is not a metakey (Status, Language) you need a custom client binder
If you do not want to create client binder you can make metakey - property mappings. You might find this post
the Telerik team
Registration for Q1 2011 What’s New Webinar Week is now open. Mark your calendar for the week starting March 21st and book your seat
for a walk through all the exciting stuff we ship with the new release!