How to add varibles when duplicate

async function doDuplicateGroup(){
  let duplicateCommand = {
  return await require("photoshop").action.batchPlay([duplicateCommand],{});

when i use duplicate commands it runs perfectly.
Now i wanna modify some vars such as group name or textbox value in the group when duplicate.
i guess i have to do _obj:get then _obj:select then _obj:set.
Is there a simple way to set vars in duplicateCommand ?

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Have you considered using the API instead of batchPlay for this particular thing? If you have a reference to your group you should be able to run its duplicate method, which returns a reference to the duplicate. You can then set any property you like on it.