your Code: 
my @new_array = map {split /:/, $_} @old_array;

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Is nearly what I was hoping for, but could you do something to get only one field? 
my @new_array = map {split /:/, ${_[3]}} @old_array;

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In reply to Re^2: Make array from field of another array by Saved
in thread Make array from field of another array by Saved

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