OK, o36 is the logging state option. It needs to be added to the doc and shaded.
In working with the /co command, I noticed a couple of minor behaviors that I didn’t expect.
I incorrectly tried to use &wl to specify the water level (rather than &o23). The response to the command was success. As expected the water level was not set, but I would have expected an error return.
I also incorrectly specified a parameter without a value (e.g. &o2 rather than &o2=1). The response was success. I would have expected an error. Since it was successful, what did OS do? Did it treat it as if the option wasn’t specified, setting the the option to 0, or do nothing with that option?