AMX Widgets Notes and Messenger not working properly

DEFINE_DEVICE
dvTPTxtInput1           =  10001:1:1
dvTPTxtInput2           =  10002:1:1


dvTPNotes1              =  10001:2:1
dvTPNotes2              =  10002:2:1 


DEFINE_CONSTANT
DEV dvTPTxtInputs[]     = {dvTPTxtInput1,
                           dvTPTxtInput2
                          }

DEV dvNotesPanels[]     = {dvTPNotes1,
                           dvTPNotes2
                          }

DEFINE_EVENT
DATA_EVENT[dvTPTxtInputs]
{
     STRING:
     {
        // ...parse,parse,parse in this section
        //
        SEND_COMMAND dvNotesPanels,"'^TXT-101,0,',DATA.TEXT"
             ON[dvNotesPanels,4]                                                       //turn on new msg indicator
     }
}

BUTTON_EVENT[dvNotesPanels,3]//ERASE
{
     PUSH:
     {
         SEND_COMMAND dvNotesPanels,"'^TXT-101,0, '"
         OFF[dvNotesPanels,4]//turn off new msg indicator
     }
}

1. How can they hard-coded the module to port 1 since there is only a netlinx code and not a TKO file or anything .

2.How do i modify the messenger widget.

Since the widget is not hardcoded to port 1 , why am i not able to change the port to another no and still receive the strings. Is it because i am using the setup port to receive the strings or using data.text, just curious thats all.

Regarding using a virtual , is it like creating a virtual and passing the strings on its command part of the data event and then doing the parsing.