At the Table View, you can view the details information of the selected data frame.
You can view the data in each column in the selected data frame.
You can show the column metrics by hovering the column header area and click the green "i" icon.
You can click the downward button to see the column menu. It shows a list of operations you can perform against this column.
You can select a column by clicking a panel. You can also choose multiple panels by Shift+Click or Control(Command)+Click.
After selecting columns, you can open the column menu and select an operation to perform the operation to multiple columns at a time.