title: How can I clear the interpreter screen in Dr. Racket IDE?
body: <p>Just starting into The Little Schemer, and have a very basic Dr. Racket IDE question:</p>
  
  <ol>
  <li><p>How can I clear the interpreter screen?</p></li>
  <li><p>How can I set the up arrow to display the previously-typed items (like in Bash) rather than the current behavior of scrolling up the screen?</p></li>
  </ol>
  
  <p>My searches are coming up blank, possibly because I don't know the technical term for these actions.</p>