extend annotation support on class diagrams

Question

Could you extend annotation in the class diagram to support having fields and methods just like classes?  As well as could we get a visibility 

@startuml
class Nmea0183Device {
    {static} @SerialPort(9600,N,8,1)
}

class SerialPort << (@,#FF7700) >> {
    +Baud : int
    +Parity : ParityTypes
    +DataBits: int
    +StopBits: StopBitTypes
    +ctor(Baud, Parity, DataBits, StopBits)
}

enum ParityTypes {
    None  {N}
    Odd   {O}
    Even  {E}
    Mark  {M}
    Space {S}
}
SerialPort *-- ParityTypes

enum StopBitTypes {
    None         {0}
    One          {1}
    Two          {2}
    OnePointFive {1.5}
}
SerialPort *-- StopBitTypes
@enduml

Answer 1

I'm not sure what you want exactly but you can embedded a class in a note like this:

See on PlantUML Server

Comments

what I want is to be able to do this...

annotation SerialPort {
    +Baud : int
    +Parity : ParityTypes
    +DataBits: int
    +StopBits: StopBitTypes
    +ctor(Baud, Parity, DataBits, StopBits)
}

and have the 

@SerialPort(...) show up with an orange dot instead of the @ character within the class definition.

---

Please make a drawing (with Paint or anything else) and put in the message to really understand your needs.