Task: Just milorad demoing

n8n workflow JSON:
{"meta":{"instanceId":"4a31be0d29cfa6246ba62b359030d712af57b98c5dfe6a7ee8beee0a46c5b5a4"},"nodes":[{"id":"71da51d2-9942-4339-80b5-8a804fc8f4dc","name":"When clicking \"Execute Workflow\"","type":"n8n-nodes-base.manualTrigger","position":[780,620],"parameters":{},"typeVersion":1},{"id":"8f0a401a-96b7-436c-85a9-d2c36e797cac","name":"Code","type":"n8n-nodes-base.code","position":[1140,620],"parameters":{"jsCode":"// Loop over input items and add a new field called 'myNewField' to the JSON of each one\nfor (const item of $input.all()) {\n  item.json.myNewField = 12;\n}\n\nreturn $input.all();"},"typeVersion":2}],"connections":{"When clicking \"Execute Workflow\"":{"main":[[{"node":"Code","type":"main","index":0}]]}}}