The FusionReactor cloud has access to both live and historic data.
Live data is retrieved through a tunnel connecting the running instance and the cloud. When using the live data you will see that the time picker is available and you can view the current time only.
Certain views in the cloud are only available through live data, meaning the instance must be online and have a cloud connector tunnel.
These views are:
Recent and running transactions
Thread visualiser
CPU Profiler
Tracing views
For a more in-depth view of the real-time data see the video below: