Now you can launch the scope app with something like

./prog/scope --mode=app --weave=false --app.collector=file:///tmp/reports

and if the specified dir contains reports with filenames in the form
<timestamp>.{msgpack|json}[.gz],
e.g. "1488557088545489008.msgpack.gz", then these reports are replayed
in a loop at a sequence and speed determined by the timestamps.