You could use the JSONPATH transform in the thing but that gives you only one item
unfortunately you can’t do that without a rule
see:
rule "jsonpath"
when
Item SMAJSON changed
then
val jsonString = SMAJSON.state.toString
Item1.postUpdate(transform("JSONPATH",".$.path.path1", jsonString))
Item2.postUpdate(transform("JSONPATH",".$.path.path2", jsonString))
Item3.postUpdate(transform("JSONPATH",".$.path.path3", jsonString))
end