Global list variable to use in dashboard

Third party integrations HADashboard
1

Hi.

Say I have the following in one of my appdaemon dashboards.
I have a lot of zones under active_map and I don’t want to rewrite them for each single tracked device.

trackeddevice_presence_mapped:
  widget_type: device_tracker
  title: trackeddevice
  device: the_device
  active_map:
    - thisplace
    - thatplace
    - thirdplace
    .......
    - 88thplace

I tried writing a global variable and using secrets.yaml.
Where secrets.yaml would have ;

myzones: 
    - thisplace
    - thatplace
    ......
    - 88thplace

and my dashboard would have

trackeddevice_presence_mapped:
  widget_type: device_tracker
  title: trackeddevice
  device: the_device
  active_map: !secret myzones

Did not work

Does anyone know of a way to solve this?