Needed a way to move one item over from a different table so I created this. Pretty self-explanatory.

; /hcopy <from_table> <to_table> [<item>]
alias hcopy {
  var %table_from = $$1
  var %table_to = $$2
  var %item = $3

  if (%item) {
    if (!$hget(%table_from)) echo -ag %table_from must exist in order to do that.
    else if (!$hget(%table_to)) echo -ag %table_to must exist in order to do that.
    else if (!$hget(%table_from, %item)) echo -ag %item must exist in order to do that.
    else {
      var %item_from = $hget(%table_from, %item)
      hadd %table_to %item %item_from
    }
  }
  else {
    if (!$hget(%table_to)) hmake $2 $hget(%table_to).size
    hsave %table_from %table_from $+ .hsh
    hload %table_to %table_from $+ .hsh
  }
}