We are already focusing on on the next release of the Perytons Protocol Analyzer which will include a new option for looking at devices interaction in your network (ZigBee, PLC, or Bluetooth Smart).
The Message Sequence View allows looking at interaction of 2:

and up to 8 devices in the network:

using an easy to read Message Sequence Chart convention.
As with the other existing views, the Message Sequence View is synchronized with the different sections enabling looking at a specific message in the Time, Message and Message-Tree views by just clicking on it.
