diff --git a/osu.Game.Rulesets.Karaoke/Edit/Lyrics/LyricEditor.cs b/osu.Game.Rulesets.Karaoke/Edit/Lyrics/LyricEditor.cs
index a8ea20269..f4f75f0bb 100644
--- a/osu.Game.Rulesets.Karaoke/Edit/Lyrics/LyricEditor.cs
+++ b/osu.Game.Rulesets.Karaoke/Edit/Lyrics/LyricEditor.cs
@@ -58,6 +58,7 @@ protected override bool OnKeyDown(KeyDownEvent e)
             if (timeTagManager == null)
                 return false;
 
+            // moving cursor action
             switch (e.Key)
             {
                 case Key.Up:
@@ -72,6 +73,27 @@ protected override bool OnKeyDown(KeyDownEvent e)
                     return timeTagManager.MoveCursor(CursorAction.First);
                 case Key.PageDown:
                     return timeTagManager.MoveCursor(CursorAction.Last);
+            }
+
+            // edit time tag action
+            var currentTimeTag = timeTagManager?.BindableCursorPosition?.Value;
+            switch (e.Key)
+            {
+                case Key.BackSpace:
+                    return timeTagManager?.ClearTimeTagTime(currentTimeTag) ?? false;
+                case Key.Space:
+                    var setTimeSuccess = timeTagManager?.SetTimeTagTime(currentTimeTag) ?? false;
+                    if (setTimeSuccess)
+                        timeTagManager.MoveCursor(CursorAction.MoveRight);
+                    return setTimeSuccess;
+                case Key.N:
+                    var createdTimeTag = timeTagManager?.AddTimeTag(currentTimeTag);
+                    if (createdTimeTag != null)
+                        timeTagManager.MoveCursorToTargetPosition(createdTimeTag);
+                    return createdTimeTag != null;
+                case Key.Delete:
+                    timeTagManager?.MoveCursor(CursorAction.MoveRight);
+                    return timeTagManager?.RemoveTimeTag(currentTimeTag) ?? false;
                 default:
                     return base.OnKeyDown(e);
             }
diff --git a/osu.Game.Rulesets.Karaoke/Edit/Lyrics/TimeTagManager.cs b/osu.Game.Rulesets.Karaoke/Edit/Lyrics/TimeTagManager.cs
index e5c105dfd..d1c2a2cd9 100644
--- a/osu.Game.Rulesets.Karaoke/Edit/Lyrics/TimeTagManager.cs
+++ b/osu.Game.Rulesets.Karaoke/Edit/Lyrics/TimeTagManager.cs
@@ -5,9 +5,11 @@
 using osu.Framework.Bindables;
 using osu.Framework.Extensions.IEnumerableExtensions;
 using osu.Framework.Graphics;
+using osu.Framework.Timing;
 using osu.Game.Rulesets.Karaoke.Edit.Generator.TimeTags.Ja;
 using osu.Game.Rulesets.Karaoke.Edit.Generator.TimeTags.Zh;
 using osu.Game.Rulesets.Karaoke.Objects;
+using osu.Game.Rulesets.Karaoke.Utils;
 using osu.Game.Screens.Edit;
 using System;
 using System.Linq;
@@ -23,11 +25,16 @@ public class TimeTagManager : Component
         [Resolved]
         private EditorBeatmap beatmap { get; set; }
 
-        [Resolved(CanBeNull = true)]
+        [Resolved(canBeNull: true)]
         private IEditorChangeHandler changeHandler { get; set; }
 
+        [Resolved(canBeNull: true)]
+        private IFrameBasedClock framedClock { get; set; }
+
         public Bindable<TimeTag> BindableCursorPosition { get; set; } = new Bindable<TimeTag>();
 
+        #region Edit Time Tag
+
         /// <summary>
         /// Will auto-detect each <see cref="Lyric"/> 's <see cref="Lyric.TimeTags"/> and apply on them.
         /// </summary>
@@ -50,6 +57,95 @@ public void AutoGenerateTimeTags()
             changeHandler?.EndChange();
         }
 
+        public bool SetTimeTagTime(TimeTag timeTag)
+        {
+            if (framedClock == null)
+                return false;
+
+            var currentLyric = timeTagInLyric(timeTag);
+            if (currentLyric == null)
+                return false;
+
+            changeHandler?.BeginChange();
+
+            timeTag.Time = framedClock.CurrentTime;
+            refreshTimeTag(currentLyric);
+
+            changeHandler?.EndChange();
+
+            currentLyric.TimeTagsBindable.TriggerChange();
+            return true;
+        }
+
+        public bool ClearTimeTagTime(TimeTag timeTag)
+        {
+            if (framedClock == null)
+                return false;
+
+            var currentLyric = timeTagInLyric(timeTag);
+            if (currentLyric == null)
+                return false;
+
+            changeHandler?.BeginChange();
+
+            timeTag.Time = null;
+            refreshTimeTag(currentLyric);
+
+            changeHandler?.EndChange();
+
+            return true;
+        }
+
+        public TimeTag AddTimeTag(TimeTag timeTag)
+        {
+            var currentLyric = timeTagInLyric(timeTag);
+            if (currentLyric == null)
+                return null;
+
+            var timeTags = currentLyric.TimeTags.ToList();
+            var targetIndex = timeTags.IndexOf(timeTag);
+            if (targetIndex < 0)
+                return null;
+
+            var newTimeTag = new TimeTag(timeTag.Index);
+            timeTags.Insert(targetIndex, newTimeTag);
+
+            changeHandler?.BeginChange();
+
+            currentLyric.TimeTags = timeTags.ToArray();
+            sortingTimeTag(currentLyric);
+
+            changeHandler?.EndChange();
+
+            return newTimeTag;
+        }
+
+        public bool RemoveTimeTag(TimeTag timeTag)
+        {
+            var currentLyric = timeTagInLyric(timeTag);
+            if (currentLyric == null)
+                return false;
+
+            changeHandler?.BeginChange();
+
+            // delete time tag from list
+            currentLyric.TimeTags = currentLyric.TimeTags.Where(x => x != timeTag).ToArray();
+
+            changeHandler?.EndChange();
+
+            return true;
+        }
+
+        private void refreshTimeTag(Lyric lyric)
+            => lyric.TimeTags = lyric.TimeTags.ToArray();
+
+        private void sortingTimeTag(Lyric lyric)
+            => lyric.TimeTags = TimeTagsUtils.Sort(lyric.TimeTags);
+
+        #endregion
+
+        #region Time Tag cursor
+
         public bool MoveCursor(CursorAction action)
         {
             var currentTimeTag = BindableCursorPosition.Value;
@@ -185,6 +281,8 @@ public TimeTag[] GenerateTimeTags(Lyric lyric)
                 }
             }
         }
+
+        #endregion
     }
 
     public enum CursorAction