Unable see Broker documents in Developer

We have created a territory with 2 brokers with one IS configured with each broker.

We have created a document type on one IS and sync it with the broker.
We are able to view the document type on both the brokers in territory.

Now I want to create a trigger for subscribing the document on another IS but I am not able to view the broker document type in developer while creating the trigger.

How can we create the trigger for broker documents in territory ?

Please help.

You have to add the document to the IS(both)in order to be able to see it. When you create the terr. the broker synchs the docs between brokers but it won’t appear in the developer until you add it there. It does not do that automatically.