Overlay duplicate query in one panel, but apply a timeshift to one (Google Cloud Trace)

Hello everyone,

i’ve been trying out grafana and have been using the Google Cloud Trace data source to visualize latency, but I’ve been wanting to create a Panel which overlays two identical queries only one will have a timeshift on it. (for example, latency this week vs latency last week). I was wondering what the best method of doing this is.

Still quite new to grafana just quickly have a test deployment going, so all help is appreciated.