This tutorial explains how to add a table grid to your game.
Click the down arrow in the component selector and click on the table component.
Click the plus sign to add a table class
Choose to create a table grid. A table grid will allow us to see our table on the stage.
After you drag the table grid, click the "Edit Columns" button.
Click inside the first text box and name the column "time collected". You can delete the second column by clicking the delete button, and then "OK" on the confirmation dialog. Click the dark grey background to hide the column editor.