Combine two fields into a label

Hi - very new to Grafana and Influxdb and flux language
Simple query

from(bucket: "sensors")
  |> range(start: -20m)
  |> filter(fn: (r) =>
    r._measurement == "Switches" and
    r._field == "switch_state"
  |> last()


switch_state {host="somehost", switch_id="s10", switch_name="SomeSwitchName"}
switch_state (host="somehost", switch_id="s11", switch_name="OtherSwitchName"}

I have (for example) a stats panel.
I can use the “labels to fields” transform
to get
or this

But would like to have BOTH fields “switch_ids” and “switch_name” in the label instead of one or the other.

Thanks in advance.

Anybody? I can’t imagine that what I am trying to do is that complicated for somebody versed in flux and grafana.