Clearing a form after input. Normally there is no simple way to clear a form after a submit or any action has been sent from this form. A simple solution to this is to use a signal in and out to clear the form, the signal out is triggered by the submit or any other action, this in turn triggers the signal in and clears the form. Find the model here. No First Select from Table. This trick works around the fact that if you use the select event in a table, it will always send the first row immediately when the table loads. In this case we use a data store and a guard condition to prevent the 1st row from being sent automatically. Find the model here.