Of course, there is a "Launch/Stop Column" OSC command. But, it would be usefull to have two more OSC commands: a simple "Start Column" and another to "Stop Column" to manage a column like a media: if you send the order "start", it would launch the column. If you send it again, it would launch again the column (instead of just "stopping" it as it is the way it works with "Launch/Stop" command).