When using table widgets in your web screen, you can manage the cells, columns, and rows of that table. When you insert the table, you specify the number of rows that the table has, but you can, afterwards, add or delete rows, and change the row order.
These operations are available on the Table toolbar or when right-clicking inside a table.
Open the insert rows drop list on the Table Toolbar, and select whether to insert a row Above or Below the table cell where your cursor is currently positioned. By default, if you press the insert row button on the Table Toolbar it will insert the row above.
The Delete row operation deletes the rows where your cursor is positioned on the Content Canvas.
The and buttons allow you to change the row order of the row where your cursor is positioned on the Content Canvas.