Show multiple value of variable on dashabord

Hi
As describe here

I create variable and use it on dashboard but problem is, it should be select one value to load dashboard, i need to load all value of variable on dashboard when i open it by default.

e.g when open dashboard i should select “servername” till dashboard load, while i expect it load dashboard and show all my 3 “server name”

here is my query on dashboard:

|> filter(fn: (r) => r[“server”] == v.server)
|> group(columns :[“server”])

there is no “all” option in variable?

any idea?
Thanks

Hi @Indeed_1

In Grafana, this works for me:

Example is a variable for “region” which has multiple values: