Include systems to several groups

[astralo]

Question

Is there a way to include software system to several group like this?

Test1 = softwaresystem "Test1" "Test1"
group "TestGroup1" {
    Test1 // attach system to the group
}
group "TestGroup2" {
    Test1 // attach system to the group
}

I trying to include all systems into one dsl file and use !include for including to workspace.
But dsl doesn't allow me to use variables with system like Test1 in groups

I have lots of services and including all of them to groups is not convenient unfortunately