ht come in handy for <em>wall style</em> maps — more on
this in the <a class="reference internal" href="basic-editing.html#basic-editing"><span class="std std-ref">Basic editing</span></a> chapter.</p>
<p>To delete the current level, press <kbd class="kbd compound docutils literal notranslate"><kbd class="kbd docutils literal notranslate">Ctrl</kbd>+<kbd class="kbd docutils literal notranslate">D</kbd></kbd>. If you deleted the level
accidentally, no problem; you can always undo it by pressing <kbd class=