diff --git a/test1/editorevents.d b/test1/editorevents.d
index 0fb4f2a..91f88d0 100644
--- a/test1/editorevents.d
+++ b/test1/editorevents.d
@@ -178,11 +178,72 @@ public class RemovePresetEvent : UndoableEvent {
 	}
 }
 public class AddSampleFile : UndoableEvent {
-
+	ModuleConfig mcfg;
+	string modID;
+	int sampleID;
+	string path;
+	Tag backup;
+	public this (ModuleConfig mcfg, string modID, int sampleID, string path, Tag backup) {
+		this.mcfg = mcfg;
+		this.modID = modID;
+		this.sampleID = sampleID;
+		this.path = path;
+		this.backup = backup;
+	}
+	public void redo() {
+		if (backup is null) {
+			mcfg.addWaveFile(path, modID, sampleID, null, null);
+		} else {
+			mcfg.addWaveFromBackup(path, backup);
+		}
+	}
+	public void undo() {
+		backup = mcfg.removeWave(modID, sampleID);
+	}
 }
 public class AddSampleSlice : UndoableEvent {
-
+	ModuleConfig mcfg;
+	string modID;
+	int sampleID;
+	int src;
+	int begin;
+	int len;
+	Tag backup;
+	public this (ModuleConfig mcfg, string modID, int sampleID, int src, int begin, int len, Tag backup) {
+		this.mcfg = mcfg;
+		this.modID = modID;
+		this.sampleID = sampleID;
+		this.src = src;
+		this.begin = begin;
+		this.len = len;
+		this.backup = backup;
+	}
+	public void redo() {
+		if (backup is null) {
+			mcfg.addWaveSlice(modID, sampleID, src, begin, len, null);
+		} else {
+			mcfg.addWaveFromBackup(path, backup);
+		}
+	}
+	public void undo() {
+		backup = mcfg.removeWave(modID, sampleID);
+	}
 }
 public class RemoveSample : UndoableEvent {
-	
+	ModuleConfig mcfg;
+	string modID;
+	int sampleID;
+	Tag backup;
+	public this (ModuleConfig mcfg, string modID, int sampleID, Tag backup) {
+		this.mcfg = mcfg;
+		this.modID = modID;
+		this.sampleID = sampleID;
+		this.backup = backup;
+	}
+	public void redo() {
+		backup = mcfg.removeWave(modID, sampleID);
+	}
+	public void undo() {
+		mcfg.addWaveFromBackup(path, backup);
+	}
 }
\ No newline at end of file
diff --git a/test1/sampleman.d b/test1/sampleman.d
index 818057a..241db75 100644
--- a/test1/sampleman.d
+++ b/test1/sampleman.d
@@ -6,6 +6,7 @@ import pixelperfectengine.audio.base.func;
 import pixelperfectengine.audio.base.config;
 import std.math : floor;
 import std.conv;
+import test1.app;
 
 public class WaveformViewer : WindowElement {
 	int[] waveform;
@@ -84,13 +85,15 @@ public class SampleMan : Window {
 	Label label_slmpR;
 	Label label_len;
 	WaveformViewer wfv;
+	
+	AudioDevKit adk;
 
 	WaveFileData[] waveFileData;
 	string path;
 
 	string moduleName;
 	//TextBox textBox0;
-	public this(string moduleName){
+	public this(string moduleName, AudioDevKit adk){
 		this.moduleName = moduleName;
 
 		super(Box(0, 0, 520, 322), "Sample manager ["d ~ moduleName.to!dstring ~ "]"d);