@Vikram_Subbaiah your method works as well.
to add another layer to this, ultimately i would like to make the indices a list of lists.
for example see below. not sure how this would work but i am sure it can be done.
lets say the first entry is replace index (0,0) with values (2,2) and the second entry is to replace index (1,1) with (1,1).
the two nodes I am using, do not do this correctly. end result should look like:
