go to new layer when text has been entered in text box

I think you could use a bit help of Javascript. Something like this:

const textFields = document.querySelectorAll('.acc-textinput');

textFields.forEach((textField) => {
    textField.addEventListener('keyup', () => {
        textField.blur();
    });
});

Put this code in 'Execute Javascript when the timeline starts on this slide' trigger. 
The blur() method will remove keyboard focus from the current element. Create a trigger in SL to say: Show layer 'correct' when 'NumericEntry' changes if 'NumericEntry' = value 68. As soon as you type 68 into the input field another layer will show up.