Use list in Grafana Variables

Question

I have different Grafana dashboards build on Graphite datasources. And add variable with such values:

grp1,grp2,grp3,grp4

Now I can choose any group in dropdown menu and it works perfectly

Also I can write in the query body something like: {grp2,grp4} to get sum of this two groups.

My question - how to make variable value that combine several possible values? I mean I want to add to dropdown menu more options like some combinations I tried the same way in Variables menu:

grp1,grp2,grp3,grp4,{grp2,grp4}

but this doesnt works - it create values like {grp2 and grp4} Also I tried to use Alloption here in the menu, but without success.

Answer 1

You need to escape comma with \, e.g.:

grp1,grp2,grp3,grp4,{grp2\,grp4}

so {grp2,grp4} will be one item in this case.