diff --git a/README.md b/README.md
index d43b477..a01c96d 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,8 @@ The definition of `hyper` and `hyperShift` can be found in [src/config.ts](src/c
 * `hyperShift + Right` (Move window to right edge of screen)
 * `hyperShift + Up` (Move window to top edge of screen)
 * `hyperShift + Down` (Move window to bottom edge of screen)
-* `hyperShift + Return` (Move window to center of screen)
+* `hyperShift + Return` (Toggle window fullscreen, i.e. separate space)
+* `hyperShift + Space` (Move window to center of screen)
 * `hyperShift + Tab` (Jump to next screen whilst maintaining current window size)
 
 Use combos of the key bindings to further place the windows:
diff --git a/src/phoenix.ts b/src/phoenix.ts
index 8cf0910..00e2b22 100644
--- a/src/phoenix.ts
+++ b/src/phoenix.ts
@@ -375,6 +375,14 @@ onKey('return', hyperShift, () => {
 	if (!win) {
 		return;
 	}
+	win.setFullScreen(!win.isFullScreen());
+});
+
+onKey('space', hyperShift, () => {
+	const win = Window.focused();
+	if (!win) {
+		return;
+	}
 
 	const {width, height} = win.frame();
 	const {