$( "#clearall_button" ).click(function() {
  console.log('clear');
  app.clearAll();
  $("#myselections").html(selectionslist);
});

$( "#forwardselect_button" ).click(function() {
  console.log('forward');
  app.forward();

});


$( "#backselect_button" ).click(function() {
  console.log('back');
  app.back();

});


$( "#lock_button" ).click(function() {
  console.log('lock');
  app.lockAll();

});



$( "#unlock_button" ).click(function() {
  console.log('unlock');
  app.unlockAll();
});

This is to create custom navigation buttons for Qlik Sense

Custom selection nav buttons

jQuery