diff --git a/AnkiDroid/src/main/java/com/ichi2/anki/previewer/PreviewerFragment.kt b/AnkiDroid/src/main/java/com/ichi2/anki/previewer/PreviewerFragment.kt
index 2b3cb0fe07bd..ca89ea0b008c 100644
--- a/AnkiDroid/src/main/java/com/ichi2/anki/previewer/PreviewerFragment.kt
+++ b/AnkiDroid/src/main/java/com/ichi2/anki/previewer/PreviewerFragment.kt
@@ -228,7 +228,28 @@ class PreviewerFragment :
     }
 
     override fun dispatchKeyEvent(event: KeyEvent): Boolean {
-        if (event.action != KeyEvent.ACTION_DOWN) return false
+        if (event.action == KeyEvent.ACTION_UP) return false
+
+        if (event.isCtrlPressed) {
+            when (event.keyCode) {
+                KeyEvent.KEYCODE_1 -> viewModel.toggleFlag(Flag.RED)
+                KeyEvent.KEYCODE_2 -> viewModel.toggleFlag(Flag.ORANGE)
+                KeyEvent.KEYCODE_3 -> viewModel.toggleFlag(Flag.GREEN)
+                KeyEvent.KEYCODE_4 -> viewModel.toggleFlag(Flag.BLUE)
+                KeyEvent.KEYCODE_5 -> viewModel.toggleFlag(Flag.PINK)
+                KeyEvent.KEYCODE_6 -> viewModel.toggleFlag(Flag.TURQUOISE)
+                KeyEvent.KEYCODE_7 -> viewModel.toggleFlag(Flag.PURPLE)
+                else -> return false
+            }
+            return true
+        }
+
+        when (event.unicodeChar.toChar()) {
+            '*' -> {
+                viewModel.toggleMark()
+                return true
+            }
+        }
 
         when (event.keyCode) {
             KeyEvent.KEYCODE_DPAD_LEFT -> {
diff --git a/AnkiDroid/src/main/java/com/ichi2/anki/previewer/PreviewerViewModel.kt b/AnkiDroid/src/main/java/com/ichi2/anki/previewer/PreviewerViewModel.kt
index 932c96cba7f9..fc02a21a69c1 100644
--- a/AnkiDroid/src/main/java/com/ichi2/anki/previewer/PreviewerViewModel.kt
+++ b/AnkiDroid/src/main/java/com/ichi2/anki/previewer/PreviewerViewModel.kt
@@ -129,6 +129,14 @@ class PreviewerViewModel(previewerIdsFile: PreviewerIdsFile, firstIndex: Int, ca
         }
     }
 
+    fun toggleFlag(flag: Flag) {
+        if (flagCode.value == flag.code) {
+            setFlag(Flag.NONE)
+        } else {
+            setFlag(flag)
+        }
+    }
+
     /**
      * Shows the current card's answer
      * or the next question if the answer is already being shown