Can lifeline activations be labeled?

Question

I'm trying to do something like the following, but it doesn't look right. I'm guessing I need to somehow label the lifelines to end them appropriately. Is it possible to do so?

@startuml
R1 -[#blue]> Q : Add [R1]
activate Q #blue
Q -[#blue]> Q : Do some stuff [R1]
R2 -[#orange]> Q : Add [R2]
activate Q #orange
R1 <-[#blue]- Q : done [R1]
deactivate Q
Q -[#orange]> Q : Do some stuff [R2]
R2 <-[#orange]- Q : done [R2]
deactivate Q
@enduml

Answer 1

This is perhaps not the answer you want, but if you want to show that there can be independent "request signals" from R1 and R2 and they are handled in parallell, you and use a par-box:

http://www.plantuml.com/plantuml/uml/NP1D2iCW48NtSug1hhE8on9A2hs0RaCMqpef0QF5dvw_6WabxiJvvfl76qCa7zDcu4CUL8_TT7cQnFCD9LxnhZLEgf-1Nd7zKkJykyz1DkJ3ON0ROuXfMUfEjWq7rEsGTfRhJFFV26m2WnB5w3pPz_cwE5-l1CY6RXEKlU8S3gp98DeCLcEfOCoFKiSF

@startuml
par
R1 -[#blue]> Q : Add [R1]
activate Q #blue
Q -[#blue]> Q : Do some stuff [R1]
R1 <-[#blue]- Q : done [R1]
deactivate Q
else
R2 -[#orange]> Q : Add [R2]
activate Q #orange
Q -[#orange]> Q : Do some stuff [R2]
R2 <-[#orange]- Q : done [R2]
deactivate Q
end par
@enduml

Comments

Thanks for the reply! I do know about the `par` construct, but I was looking for something with a better visual representation of time - I want to see these processes side by side.