request : adding ports to first and last columns

[wilcar]

I create tables with graphviz. The first and last column of each table have numbered ports that allow me to connect to other tables (like database keys).
I use a numbering from 1 to n for the left column and a numbering of 11, 12, 13, 14 to find my way in the right column.
Here is the code.
Do you think we can add this feature to your package?

        tableJONC[ label=<
            <TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0" CELLPADDING="4">
                <TR>
                    <TD colspan="1"  color="white" align="left">Table de jonction</TD>
                </TR>
        
                <TR>
                    <TD PORT="0" bgcolor="lightgray" align="center"> Artiste ID</TD>
                    <TD PORT="0" bgcolor="lightgray" align="center"> Oeuvre</TD>
                    <TD PORT="0" bgcolor="lightgray" align="center"> Salon ID</TD>
                </TR>
        
                <TR>
                    <TD PORT="1" >1</TD>
                    <TD> Paul Verlaine </TD>
                    
                    <TD PORT="11" >1</TD>
                </TR>
        
                <TR>
                    <TD PORT="2" >1</TD>
                    <TD> Paul Verlaine </TD>
                    
                    <TD PORT="12" >2</TD>
                </TR> 
        
                <TR>
                    <TD PORT="3" >2</TD>
                    <TD> La classe manuelle, écode des petites filles</TD>
                   
                    <TD PORT="13" >2</TD>
                </TR>
        
                <TR>
                    <TD PORT="4" >2</TD>
                    <TD>La classe manuelle, écode des petites filles</TD>
                    
                    <TD PORT="14" >3</TD>
                </TR>