Can you add the flexibility to access fields based on its position or index like a, a,... a[n]. a being the first column. Also an option to get max[a] can give the last column and min[a] give the first column. In this way, we can easily subset the dataset. Most cases, we are handling survey data which has 1000s of columns and when we need to select certain columns, we have to manually select the column checkbox and its painful to select 100s of columns. It will be nice if there is an option to select based on ID or index. It will also be useful while doing multi-field formula with more number of fields, because currently there is no option to write formulaes based on field Name column in it.