diff --git a/srcs/juloo.keyboard2/KeyEventHandler.java b/srcs/juloo.keyboard2/KeyEventHandler.java
index 1e384e1..2f4a239 100644
--- a/srcs/juloo.keyboard2/KeyEventHandler.java
+++ b/srcs/juloo.keyboard2/KeyEventHandler.java
@@ -254,15 +254,17 @@ public final class KeyEventHandler
     return conn.getExtractedText(_move_cursor_req, 0);
   }
 
-  /** [repeatition] might be negative, in which case the direction is reversed. */
-  void handle_slider(KeyValue.Slider s, int repeatition)
+  /** [r] might be negative, in which case the direction is reversed. */
+  void handle_slider(KeyValue.Slider s, int r)
   {
     switch (s)
     {
-      case Cursor_left: move_cursor(-repeatition); break;
-      case Cursor_right: move_cursor(repeatition); break;
-      case Cursor_up: move_cursor_vertical(-repeatition); break;
-      case Cursor_down: move_cursor_vertical(repeatition); break;
+      case Cursor_left: move_cursor(-r); break;
+      case Cursor_right: move_cursor(r); break;
+      case Cursor_up: move_cursor_vertical(-r); break;
+      case Cursor_down: move_cursor_vertical(r); break;
+      case Selection_cursor_left: move_cursor_sel(r, true); break;
+      case Selection_cursor_right: move_cursor_sel(r, false); break;
     }
   }
 
@@ -276,12 +278,7 @@ public final class KeyEventHandler
     if (conn == null)
       return;
     ExtractedText et = get_cursor_pos(conn);
-    int system_mods =
-      KeyEvent.META_CTRL_ON | KeyEvent.META_ALT_ON | KeyEvent.META_META_ON;
-    // Fallback to sending key events if system modifiers are activated or
-    // ExtractedText is not supported, for example on Termux.
-    if (!_move_cursor_force_fallback && et != null
-        && (_meta_state & system_mods) == 0)
+    if (et != null && can_set_selection(conn))
     {
       int sel_start = et.selectionStart;
       int sel_end = et.selectionEnd;
@@ -300,8 +297,45 @@ public final class KeyEventHandler
           sel_start = sel_end;
       }
       if (conn.setSelection(sel_start, sel_end))
-        return; // [setSelection] succeeded, don't fallback to key events
+        return; // Fallback to sending key events if [setSelection] failed
     }
+    move_cursor_fallback(d);
+  }
+
+  /** Move one of the two side of a selection. If [sel_left] is true, the left
+      position is moved, otherwise the right position is moved. */
+  void move_cursor_sel(int d, boolean sel_left)
+  {
+    InputConnection conn = _recv.getCurrentInputConnection();
+    if (conn == null)
+      return;
+    ExtractedText et = get_cursor_pos(conn);
+    if (et != null && can_set_selection(conn))
+    {
+      int sel_start = et.selectionStart;
+      int sel_end = et.selectionEnd;
+      if (sel_left == (sel_start <= sel_end))
+        sel_start += d;
+      else
+        sel_end += d;
+      if (conn.setSelection(sel_start, sel_end))
+        return; // Fallback to sending key events if [setSelection] failed
+    }
+    move_cursor_fallback(d);
+  }
+
+  /** Returns whether the selection can be set using [conn.setSelection()].
+      This can happen on Termux or when system modifiers are activated for
+      example. */
+  boolean can_set_selection(InputConnection conn)
+  {
+    final int system_mods =
+      KeyEvent.META_CTRL_ON | KeyEvent.META_ALT_ON | KeyEvent.META_META_ON;
+    return !_move_cursor_force_fallback && (_meta_state & system_mods) == 0;
+  }
+
+  void move_cursor_fallback(int d)
+  {
     if (d < 0)
       send_key_down_up_repeat(KeyEvent.KEYCODE_DPAD_LEFT, -d);
     else
diff --git a/srcs/juloo.keyboard2/KeyModifier.java b/srcs/juloo.keyboard2/KeyModifier.java
index 31a72bc..be3d30c 100644
--- a/srcs/juloo.keyboard2/KeyModifier.java
+++ b/srcs/juloo.keyboard2/KeyModifier.java
@@ -397,6 +397,13 @@ public final class KeyModifier
           case ' ': name = "selection_cancel"; break;
         }
         break;
+      case Slider:
+        switch (k.getSlider())
+        {
+          case Cursor_left: name = "selection_cursor_left"; break;
+          case Cursor_right: name = "selection_cursor_right"; break;
+        }
+        break;
       case Keyevent:
         switch (k.getKeyevent())
         {
diff --git a/srcs/juloo.keyboard2/KeyValue.java b/srcs/juloo.keyboard2/KeyValue.java
index 2a686bb..d521b8e 100644
--- a/srcs/juloo.keyboard2/KeyValue.java
+++ b/srcs/juloo.keyboard2/KeyValue.java
@@ -713,6 +713,9 @@ public final class KeyValue implements Comparable<KeyValue>
       case "cursor_right": return sliderKey(Slider.Cursor_right, 1);
       case "cursor_up": return sliderKey(Slider.Cursor_up, 1);
       case "cursor_down": return sliderKey(Slider.Cursor_down, 1);
+      case "selection_cancel": return editingKey("Esc", Editing.SELECTION_CANCEL, FLAG_SMALLER_FONT);
+      case "selection_cursor_left": return sliderKey(Slider.Selection_cursor_left, -1); // Move the left side of the selection
+      case "selection_cursor_right": return sliderKey(Slider.Selection_cursor_right, 1);
       // These keys are not used
       case "replaceText": return editingKey("repl", Editing.REPLACE);
       case "textAssist": return editingKey(0xE038, Editing.ASSIST);
@@ -764,7 +767,6 @@ public final class KeyValue implements Comparable<KeyValue>
 
       /* Internal keys */
       case "selection_mode": return makeInternalModifier(Modifier.SELECTION_MODE);
-      case "selection_cancel": return editingKey("Esc", Editing.SELECTION_CANCEL, FLAG_SMALLER_FONT);
 
       default: return null;
     }
@@ -782,7 +784,9 @@ public final class KeyValue implements Comparable<KeyValue>
     Cursor_left(0xE008),
     Cursor_right(0xE006),
     Cursor_up(0xE005),
-    Cursor_down(0xE007);
+    Cursor_down(0xE007),
+    Selection_cursor_left(0xE008),
+    Selection_cursor_right(0xE006);
 
     final String symbol;