More efficient way to do this? (photo)

Additional to yvervoort suggestion, another possibility (should be improved a little bit to get a perfect result).

$w('Checkbox').onChange((event)=>{
 let selectedElement = event.target.id
 
  for (var i = 0; i < PutInHereTheLengthOfCheckboxes; i++) {
     switch(selectedElement)){
       case ("checkbox"+i): 
          $w("#textDescription").text = "This is text sent here after checking
       break;
     }
   }
})