How to refer to collection in a called function?

[Lierduh]

I think the code probably makes more sense for the experts than explaining.

Function Duplicator(strSource As String, strTarget As String, strSkip As String, strIDName As String, varIDVal As Variant, varSetTo As Variant, Optional strExtrSQL As Variant)

...<removed unrelated code>

'Find out the size of the array
intSetToNo = UBound(varSetTo, 1)

Set Src = CurDB.OpenRecordset(strSQLs, dbOpenForwardOnly)
Set Trgt = CurDB.OpenRecordset(strSQLt, dbOpenDynaset, dbAppendOnly)

If Not Src.EOF Then
  Do Until Src.EOF
    Trgt.AddNew
    For Each fldLoop In Src.Fields
          If InStr(strSkip, fldLoop.Name) = 0 Then 'skip those field names included in strSkip
              Trgt(fldLoop.Name) = Src(fldLoop.Name)
          End If
    Next fldLoop
    
    'Now add those pre-set values from the array
    For intCnt = 0 To intSetToNo
       Trgt(varSetTo(intCnt, 0)) = varSetTo(intCnt, 1)
    Next intCnt
    
    Trgt.Update
  Src.MoveNext
  Loop
Else 'src.eof
  MsgBox "Source.EOF!"
End If 'src.eof

...
End Function

Normally I can call the function and having the preset value and field name in the array. eg.

varSetTo(0,0)="ShippedQty"
varSetTo(0,1)=10
varSetTo(1,0)="PrevShippedQty"
varSetTo(1,1)=2


Now I need to set the value for a certain field to the value of another field in the source recordset. eg.

varSetTo(0,0)="ShippedQty"
varSetTo(0,1)= < Src!PrevShippedQty > + 10

                     ^^^^^^^^^^^^^^^^^^^

My question is how do I refer to a recordset inside a function which the code calls?

Thank you for reading this!