hi again everyone,

I seem stuck in how to do the following:

update a list of boxes y at field 0 with list of replacement values x.

The closest I've gotten is:

 ( 1 2 3) (0})("0 1) L:0 (0 1 ; 2 3 ; 4 5)


That produces a 3 x 3 array of boxes, with the diagonal the right answer.  The 
result I want is:

1 1 ; 2 3 ; 3 5
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