Add JS with toolbox on page load:
$(window).keydown(function(e) {
if (e.keyCode == 13 && !e.shiftKey) {
e.preventDefault();
$(’#message’).blur();
if($(’#enter’).length){
$(’#enter’).click();
}
}
});
where ‘message’ is the HTML custom ID of the multiline input and ‘enter’ is the ID of the ‘send’ button. When enter is typed without shift, it will simulate a click on the send message button.