basically what i did, was drip the list one element at a time, using [list-drip].  Then, i prepend each element with alternative 0&#39;s and 1&#39;s, generated by [f ]x[==].  By using [route], those elements are then sent alternatively left and right to an accumulator made with [list prepend].  finally, each resulting list is banged to send the full result. <br>
<br>i&#39;m n sure if there might be a simpler way, but that was the simplest i came up with.<br><br>  <br>