Sequence diagram request: Grouping interactions in own defined group

[FadySalama]

Proposed feature

I would really like to group a number of interactions in my own defined group as shown in the image below

A possible syntax for the implementation would be:

sequenceDiagram
    participant Alice
    participant Bob
    participant Charl

    group label [description]
       Alice-> Bob: hello
       Alice-> Charl: hi
       Charl-> Alice: Hello there
    end

[grese]

👍 This would be nice.

[kevin-denver]

👍

[anomam]

👍

[lukas-tide]

I am using critical as a work around

sequenceDiagram
    participant Alice
    participant Bob
    participant Charl

    Alice-> Bob: hello
    critical label
       Alice-> Charl: hi
       Charl-> Alice: Hello there
    end

sequenceDiagram
    participant Alice
    participant Bob
    participant Charl

    Alice-> Bob: hello
    critical label
       Alice-> Charl: hi
       Charl-> Alice: Hello there
    end