Please tell me how to make the intersection of Proxy rectangles (in the code they are indicated as PR and PROX) in different groups in PlantUML. Now they are in the Data Plane group, and it is also necessary that both Proxe as PR be included in another group with Service A and Proxe as PROX with Service B in the third group.
@startuml
rectangle "Service A" as SA <<$archimate/physical-equipment>> #transparent;line:Grey
node "Data\nplane" #LightBlue;line:LightBlue;text:thistle {
rectangle "Proxy" as PR <<$archimate/physical-material>> #transparent;line:Grey
rectangle "Proxy" as PROX <<$archimate/physical-material>> #transparent;line:Grey
SA -d->> PR #line:green
PR -u->> SA #line:green
}
rectangle "Service B" as SB <<$archimate/physical-equipment>> #transparent;line:Grey
SB -d->> PROX #line:green
PROX -u->> SB #line:green
PR ->> PROX #line:green : Mesh traffic
@enduml