The input type grid allows you to select a range of cells (matrix) as a single input definition. This makes it much easier to handle large numbers of cells as long as they are grouped in a matrix form. It also allows you to create an "Excel-like" view inside your web application. The screenshot below displays a web application with the grid inputs highlighted in red.

To assign a grid to a set of cells, first select an input cell as demonstrated earlier. In Step 4, select "Grid" for your input cells from the drop down menu as shown in the screenshot below.

After you have selected "Grid" from the drop down menu, a new small window will appear and you will be asked to select the range of cells that you want to assign to the input cell. Please note that you can only assign one grid per input cell.

Once you have made your selection and pressed OK, you will see the following in the SpreadsheetWEB Wizard.

To change the input range for the "Grid", simply click on the button to the right of the Input Range field and make a new selection. If you want to change the input type, click the drop down menu that now shows 'Grid' and select a different input type from the list.
To proceed with the conversion press "Next".