To suspend individual agents within an AppServer or WebSpeed debug session:
Highlight the agent node in the Debug view’s tree view and select Suspend.
If the agent is currently active and cannot be suspended (for instance, the
agent might be waiting for a request), it resumes to its previous state, and
Progress Developer Studio for OpenEdge updates the UI appropriately. If the
agent can be suspended properly, then Progress Developer Studio for OpenEdge is
notified (through the broker) of the agent's current state and updates the UI,
displaying the current position in the code.