diff --git a/src/index.tsx b/src/index.tsx
index db539c3a9..4d2480acd 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -304,6 +304,7 @@ class App extends React.Component<{}, AppState> {
     if (event.key === "Escape") {
       this.clearSelection();
       drawScene(this.state.elements);
+      event.preventDefault();
     } else if (event.key === "Backspace") {
       this.deleteSelectedElements();
       drawScene(this.state.elements);
@@ -325,6 +326,12 @@ class App extends React.Component<{}, AppState> {
       });
       drawScene(this.state.elements);
       event.preventDefault();
+    } else if (event.key === "a" && event.metaKey) {
+      this.setState({
+        elements: this.state.elements.map(e => ({ ...e, isSelected: true }))
+      });
+      drawScene(this.state.elements);
+      event.preventDefault();
     }
   };