Select schematic instance from instance iterations

 Hello,

I have a question, how do i select in SKILL a single instance from a
instance?

This is my situation:
I have a schematic with a instance I5<153:0> and this instance has 7
pins.
Connected to these pins are nets with "complex" net names.
Like
this :"<*4>(<*16>coladdr<4>,<*16>coladdr_<4>),<*16>coladdr<4>,<*10>coladdr_<4>".

I wanted to make a generic skill script that selects each iteration
(e.g. I5<15>) and generate a via matrix to forsee the correct connects
at his pins in layout.

However I have difficulties finding the right attribute to get the
list of the iterations.

This is how far i got:
libName = "my_lib"
cellName = "my_cell"

targetInstanceName= "my_instname<153:0>"

cvId=dbOpenCellViewByType(libName cellName "schematic" "schematic"
"r");

instList=cvId~>instances;

n=length(instList);
targetPosition=0;
for( index 0 n
        if(nth(index instList)~>name == targetInstanceName
        then
                targetPosition=index;
        )
)

targetInstance=nth(targetPosition instList);

From here i wanted to make an array from the iterations as objects and
then see what the connections should be for each pin.

Thanks for your help,