I’m totally new to dhtmlx and I try to create a form with a couple of checkboxes that should be stored to the a database. I tried the “contact manager” tutorial and used that project as a starting point. Now I want to add some checkboxes to the form and store their state into the DB but I can’t find any clue how to handle them. Is there any tutorial or a code example how I can send their values over a connector to the DB?