When using multiple screens, you want to keep your blocks organized according to screen in the Blocks editor. Since we are getting ready to program blocks for the RSVP_Screen, we need to make sure we are on the RSVP_Screen in the Blocks editor.

To check this, look at the first of three buttons in the green menu bar next to the EventApp name. If you just finished working on the RSVP_Screen in the Designer and switched over to the Blocks editor, you will be on RSVP_Screen. But if not, you can easily navigate to RSVP_Screen by clicking the button that displays another screen name (Screen1 as shown in the following screenshot) and choosing RSVP_ Screen from the drop-down menu:

When the user clicks the Send RSVP button, we want to insert all three pieces of data into the Fusion Table. The following screenshot shows the block to achieve just this. This might look intimidating, but is actually quite simple:

Since we want our app to react to the Send RSVP button click...