How to Reference Variable within Another Function

I am working on a project that would greatly benefit from referencing function variables that change depending on the context of when those variables are called. For the script below, I am trying to figure out how to change which cell is being copied when running the CopyDataTest() function within the main function.

I have tried to define that variable in the main function and then call the CopyDataTest() function within the main function but that doesn’t appear to work.

This code below works great if I comment out line 39, but how do I get the CopyDataTest() function to use the value of var RangeSelect within the main function?

(function()
{
    // Access the worksheets
    var sheet1 = Api.GetSheet("Sheet1");
    var sheet2 = Api.GetSheet("Sheet2");

    //Sleep function
    function sleep(ms) {
      return new Promise(resolve => setTimeout(resolve, ms));
    }
    
    //Recalculate whole workbook again with all changes
    function RecalculateWorkbook() {
          Api.asc_calculate(Asc.c_oAscCalculateType.All);
    }
    
    function CopyDataTest() {
        
        //Get Data from Sheet 1
        var CopiedValue = sheet1.GetRange(RangeSelect).GetValue();
        
        //Paste data into Sheet 1
        sheet1.GetRange("B14").SetValue(CopiedValue);
        
    }
    
//*******************************************************************
//Function: Main
//*******************************************************************
async function MainFunction() {
    
//Start Message
console.log('Greetings!');

//Declare variables for Copy Data Test
var RangeSelect = sheet1.GetRange("A2");

//Copy Data Test
CopyDataTest()

//Reclaculate Workbook
RecalculateWorkbook()

//Wait 5 seconds
await sleep(5000);
      
//End Message      
console.log('Goodbye!');
      
    }

MainFunction();
})();```

Hello @qualm
I’ve tried to reproduce the situation with the provided code via the connector class, but failed. It seems I’m missing something.
Could you please provide a test file where this code can be executed? As far as I understand, the main point of the scenario is copying data from cell to another one.
If I misunderstood the scenario, please clarify it.