Charles:

>    Still, I like to know where REBOL is, or thinks it is.  I like to be 
able 
> to
>  have some sort of index instantly available to me like that.  Yes, I know, 
I
>  can use pick series 3, but when I use 'next and 'skip and whatnot.... I get
>  lost.

You can also use a more explicit "pointer-style":

str: "abcde"
blk: ["A" "B" "C" "D" "E"]
for n 1 5 1 [print [str/:n    blk/:n]]
a A
b B
c C
d D
e E

Though it works only for reference; you need 'poke or similar to update. (RT 
are, I think, considering extending it to updates):

for n 1 5 1 [poke str  n #"x"    poke blk n "x"    print [str blk]]
xbcde x B C D E
xxcde x x C D E
xxxde x x x D E
xxxxe x x x x E
xxxxx x x x x x

Sunanda.
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