At this moment it's not possible to filter by instance.
For example when you have a Client environment which has seperate instances on 1 or multipleservers.
All data received is bundled in the app name and environment and there is no way to filter the APM requests by instance.
The data is received with instance param, so it would be quite easy to just filter this.
Agreed; we have dozens of instances of some applications and it's very tricky to identify when one has "gone rogue" and has aberrant behavior.