Monitoring errors with grafana google cloud monitoring/stackdriver!

Hi All.
I am trying to create a monitoring dashboard for viewing errors for some of our clients.
I want to create a panel where i can view the sum of errors happening.
When i add the logging service and filter by severity the results are split up to several same entities. Although i understand that the log errors might have differences in metric.label.log side, i would still like them to be grouped by into one.
Attached is a photo of how many entities(lines) it is split into when trying to get the errors.