Track messages by schema name

Hi Gurus!

Please help! I’m working with Biztalk 2010 and I would like to track messages based on their schema and some promoted fields.  So I launched BT Admin Console, created a new query like this:  “Search For” “Equals” “Tracked Message Events”. But when tried to set the Schema Name, I realized that the dropdown list doesn’t contain all schemas, only a few of them. It shows 15 schemas although there are more than 500 schemas currently deployed. How can I get all of the deployed schemas appear in the dropdown list?

Thanks for any help in advance,

Tamas