Converting rowx to JS

Thank you very much @dvbridges, I greatly appreciate it. I just had one more question. I saw on a previous post, you wrote this line of code:

aValue = myList.trialList[0]['variableName'] // Get value from row 0

This was in reference to a codeblock using the trialhandler to access a conditions file. I just wanted to know if there’s a similar version to access a column instead, sort of like colx. Alternatively is it just possible to access/import JS libraries (e.g. npm install exceljs)?

Thanks again and kind regards,

Jack