Hi,

A transcript:

; Create trees...
user=> (def t1 [1 [[2 3] 4]])
#'user/t1
user=> (def t2 [[[:a :b] :c] :d])
#'user/t2

; Create zippers and navigate to subtrees...
user=> (def zt1 (-> (zip/vector-zip t1) zip/down zip/right))
#'user/zt1
user=> (zip/node zt1)
[[2 3] 4]
user=> (def zt2 (-> (zip/vector-zip t2) zip/down))
#'user/zt2
user=> (zip/node zt2)
[[:a :b] :c]

; Replace the subtree from first zipper with subtree from second
zipper...
user=> (def zt1 (zip/replace zt1 (zip/node zt2)))
#'user/zt1
user=> (zip/root zt1)
[1 [[:a :b] :c]]

Isn't that what you want?

Sincerely
Meikel

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