How to do it with eventsheet?
clipboard (need Object: Array, JSON)
{"is-c3-clipboard-data":true,"type":"events","items":[{"functionName":"ConvertArrayToJSON","functionDescription":"","functionCategory":"","functionReturnType":"none","functionCopyPicked":false,"functionIsAsync":false,"functionParameters":[],"eventType":"function-block","conditions":[],"actions":[],"children":[{"eventType":"block","conditions":[{"id":"for","objectClass":"System","parameters":{"name":"\"row\"","start-index":"1","end-index":"Array.Height-1"}}],"actions":[{"id":"set-path","objectClass":"JSON","parameters":{"path":"str(Array.At(0, loopindex))"}},{"id":"set-object","objectClass":"JSON","parameters":{"path":"Self.Path"}}],"children":[{"eventType":"block","conditions":[{"id":"for-each-element","objectClass":"Array","parameters":{"axes":"x"}}],"actions":[{"id":"set-value","objectClass":"JSON","parameters":{"path":"\".\" & str(Array.CurValue)","value":"Array.At(Array.CurX, loopindex(\"row\"))"}}]}]}]}]}