1) Yes, turning on a remote zone on the second controller will trigger its own master valve, if one is configured.
2) No, the log on master controller will not reflect the flow rates on the second controller, because the only communication between master and remote controllers are the turning on/off zone commands sent from master controller. This is one-way communication, the master controller does not read any data from the remote controller. However, flow information will be logged on the remote controller.