This workflow demonstrates how to add defined cluster labels after k-Means clustering on only one column is performed. This is done by specifying Cluster Labels in table Creator node and appending them to already ascending sorted data from second output of k-Means node. Then Cell Replacer is used to add Cluster Lables to data from first output. Same approach can be used to add Cluster Labels to data from Cluster Assigner node.
This is a companion discussion topic for the original entry at https://kni.me/w/pXfsjIdbyQC_3B7O