Packet Error Rate - Sync Selected Packets With Other Windows
By default, and unlike other windows, PER Stats is not synchronized with other windows such as Frame
Display in that selecting a frame range in one does not highlight the same frame range in the other. This ensures that Frame
Display isn’t constantly re-synchronizing during live capture while the view-port is maximized in PER Stats. If PER Stats synchronization is desired, it can be enabled by checking the Sync Selected Packets with Other Windows check box.