diff --git a/command/remoteundostatusmacro/app.d b/command/remoteundostatusmacro/app.d
new file mode 100644
index 0000000..8940c5e
--- /dev/null
+++ b/command/remoteundostatusmacro/app.d
@@ -0,0 +1,54 @@
+module command.remoteundostatusmacro.app;
+
+import command.remoteundostatusmacro.remotecontrol;
+import command.remoteundostatusmacro.lightoncommand;
+import command.remoteundostatusmacro.lightoffcommand;
+import command.remoteundostatusmacro.light;
+import command.remoteundostatusmacro.tv;
+import command.remoteundostatusmacro.tvoffcommand;
+import command.remoteundostatusmacro.tvoncommand;
+import command.remoteundostatusmacro.hottub;
+import command.remoteundostatusmacro.hottuboffcommand;
+import command.remoteundostatusmacro.hottuboncommand;
+import command.remoteundostatusmacro.stereoonwithcdcommand;
+import command.remoteundostatusmacro.stereo;
+import command.remoteundostatusmacro.stereooffcommand;
+import command.remoteundostatusmacro.command;
+import command.remoteundostatusmacro.macrocommand;
+import std.stdio : writeln;
+
+void main()
+{
+    auto remoteControl = new RemoteControl();
+
+    auto light = new Light("Living Room");
+    auto tv = new TV("Living Room");
+    auto stereo = new Stereo("Living Room");
+    auto hottub = new Hottub();
+
+    Command[] partyOn = cast(Command[])[
+        new LightOnCommand(light),
+        new StereoOnWithCDCommand(stereo),
+        new TVOnCommand(tv),
+        new HottubOnCommand(hottub)
+    ];
+    Command[] partyOff = cast(Command[])[
+        new LightOffCommand(light),
+        new StereoOffCommand(stereo),
+        new TVOffCommand(tv),
+        new HottubOffCommand(hottub)
+    ];
+
+    remoteControl.setCommand(0, new MacroCommand(partyOn), new MacroCommand(partyOff));
+
+    writeln(remoteControl);
+    writeln("--- Pushing Macro On ---");
+    remoteControl.onButtonWasPushed(0);
+    writeln("--- Pushing Macro Off ---");
+    remoteControl.offButtonWasPushed(0);
+    writeln(remoteControl);
+    remoteControl.undoButtonWasPushed();
+    writeln(remoteControl);
+    remoteControl.onButtonWasPushed(0);
+    writeln(remoteControl);
+}
\ No newline at end of file
diff --git a/command/remoteundostatusmacro/command.d b/command/remoteundostatusmacro/command.d
new file mode 100644
index 0000000..350ed3d
--- /dev/null
+++ b/command/remoteundostatusmacro/command.d
@@ -0,0 +1,7 @@
+module command.remoteundostatusmacro.command;
+
+interface Command
+{
+    void execute();
+    void undo();
+}
diff --git a/command/remoteundostatusmacro/hottub.d b/command/remoteundostatusmacro/hottub.d
new file mode 100644
index 0000000..833a90a
--- /dev/null
+++ b/command/remoteundostatusmacro/hottub.d
@@ -0,0 +1,58 @@
+module command.remoteundostatusmacro.hottub;
+
+import std.stdio : writeln;
+import std.conv : to;
+
+class Hottub
+{
+    private bool isOn;
+    private int temperature;
+
+    void on()
+    {
+        isOn = true;
+    }
+
+    void off()
+    {
+        isOn = false;
+    }
+
+    void circulate()
+    {
+        if (isOn)
+        {
+            writeln("Hottub is bubbling!");
+        }
+    }
+
+    void jetsOn()
+    {
+        if (isOn)
+        {
+            writeln("Hottub jets are on");
+        }
+    }
+
+    void jetsOff()
+    {
+        if (isOn)
+        {
+            writeln("Hottub jets are off");
+        }
+    }
+
+    void setTemperature(int temperature)
+    {
+        if (temperature > this.temperature)
+        {
+            writeln("Hottub is heating to a steaming " ~ temperature.to!string ~ " degrees");
+        }
+        else
+        {
+            writeln("Hottub is cooling to " ~ temperature.to!string ~ " degrees");
+        }
+
+        this.temperature = temperature;
+    }
+}
diff --git a/command/remoteundostatusmacro/hottuboffcommand.d b/command/remoteundostatusmacro/hottuboffcommand.d
new file mode 100644
index 0000000..b146284
--- /dev/null
+++ b/command/remoteundostatusmacro/hottuboffcommand.d
@@ -0,0 +1,25 @@
+module command.remoteundostatusmacro.hottuboffcommand;
+
+import command.remoteundostatusmacro.command;
+import command.remoteundostatusmacro.hottub;
+
+class HottubOffCommand : Command
+{
+    Hottub hottub;
+
+    this(Hottub hottub)
+    {
+        this.hottub = hottub;
+    }
+
+    void execute()
+    {
+        hottub.setTemperature(98);
+        hottub.off();
+    }
+
+    void undo()
+    {
+        hottub.on();
+    }
+}
diff --git a/command/remoteundostatusmacro/hottuboncommand.d b/command/remoteundostatusmacro/hottuboncommand.d
new file mode 100644
index 0000000..d50a2ec
--- /dev/null
+++ b/command/remoteundostatusmacro/hottuboncommand.d
@@ -0,0 +1,26 @@
+module command.remoteundostatusmacro.hottuboncommand;
+
+import command.remoteundostatusmacro.command;
+import command.remoteundostatusmacro.hottub;
+
+class HottubOnCommand : Command
+{
+    Hottub hottub;
+
+    this(Hottub hottub)
+    {
+        this.hottub = hottub;
+    }
+
+    void execute()
+    {
+        hottub.on();
+        hottub.setTemperature(104);
+        hottub.circulate();
+    }
+
+    void undo()
+    {
+        hottub.off();
+    }
+}
diff --git a/command/remoteundostatusmacro/light.d b/command/remoteundostatusmacro/light.d
new file mode 100644
index 0000000..38d12c3
--- /dev/null
+++ b/command/remoteundostatusmacro/light.d
@@ -0,0 +1,23 @@
+module command.remoteundostatusmacro.light;
+
+import std.stdio : writeln;
+
+class Light
+{
+    private string location;
+
+    this(string location)
+    {
+        this.location = location;
+    }
+
+    void on()
+    {
+        writeln(location ~ " light is On");
+    }
+
+    void off()
+    {
+        writeln(location ~ " light is Off");
+    }
+}
diff --git a/command/remoteundostatusmacro/lightoffcommand.d b/command/remoteundostatusmacro/lightoffcommand.d
new file mode 100644
index 0000000..735dbf2
--- /dev/null
+++ b/command/remoteundostatusmacro/lightoffcommand.d
@@ -0,0 +1,24 @@
+module command.remoteundostatusmacro.lightoffcommand;
+
+import command.remoteundostatusmacro.command;
+import command.remoteundostatusmacro.light;
+
+class LightOffCommand : Command
+{
+    Light light;
+
+    this(Light light)
+    {
+        this.light = light;
+    }
+
+    void execute()
+    {
+        light.off();
+    }
+
+    void undo()
+    {
+        light.on();
+    }
+}
diff --git a/command/remoteundostatusmacro/lightoncommand.d b/command/remoteundostatusmacro/lightoncommand.d
new file mode 100644
index 0000000..265dc71
--- /dev/null
+++ b/command/remoteundostatusmacro/lightoncommand.d
@@ -0,0 +1,24 @@
+module command.remoteundostatusmacro.lightoncommand;
+
+import command.remoteundostatusmacro.command;
+import command.remoteundostatusmacro.light;
+
+class LightOnCommand : Command
+{
+    Light light;
+
+    this(Light light)
+    {
+        this.light = light;
+    }
+
+    void execute()
+    {
+        light.on();
+    }
+
+    void undo()
+    {
+        light.off();
+    }
+}
diff --git a/command/remoteundostatusmacro/macrocommand.d b/command/remoteundostatusmacro/macrocommand.d
new file mode 100644
index 0000000..b3b4315
--- /dev/null
+++ b/command/remoteundostatusmacro/macrocommand.d
@@ -0,0 +1,29 @@
+module command.remoteundostatusmacro.macrocommand;
+
+import command.remoteundostatusmacro.command;
+
+class MacroCommand : Command
+{
+    Command[] commands;
+
+    this(Command[] commands)
+    {
+        this.commands = commands;
+    }
+
+    void execute()
+    {
+        foreach (val; commands)
+        {
+            val.execute();
+        }
+    }
+
+    void undo()
+    {
+        foreach (val; commands)
+        {
+            val.undo();
+        }
+    }
+}
diff --git a/command/remoteundostatusmacro/nocommand.d b/command/remoteundostatusmacro/nocommand.d
new file mode 100644
index 0000000..54fc006
--- /dev/null
+++ b/command/remoteundostatusmacro/nocommand.d
@@ -0,0 +1,9 @@
+module command.remoteundostatusmacro.nocommand;
+
+import command.remoteundostatusmacro.command;
+
+class NoCommand : Command
+{
+    void execute() {}
+    void undo() {}
+}
diff --git a/command/remoteundostatusmacro/remotecontrol.d b/command/remoteundostatusmacro/remotecontrol.d
new file mode 100644
index 0000000..d058881
--- /dev/null
+++ b/command/remoteundostatusmacro/remotecontrol.d
@@ -0,0 +1,63 @@
+module command.remoteundostatusmacro.remotecontrol;
+
+import command.remoteundostatusmacro.command;
+import command.remoteundostatusmacro.nocommand;
+import std.conv : to;
+import std.stdio : writeln;
+import std.algorithm.mutation : fill;
+import std.array : split, back;
+import std.format;
+
+class RemoteControl
+{
+    Command[] onCommands;
+    Command[] offCommands;
+    Command undoCommand;
+
+    this()
+    {
+        onCommands = new Command[7];
+        offCommands = new Command[7];
+        Command noCommand = new NoCommand();
+        fill(onCommands, noCommand);        
+        fill(offCommands, noCommand);
+        undoCommand = noCommand;
+    }
+
+    void setCommand(int slot, Command onCommand, Command offCommand)
+    {
+        onCommands[slot] = onCommand;
+        offCommands[slot] = offCommand;
+    }
+
+    void onButtonWasPushed(int slot)
+    {
+        onCommands[slot].execute();
+        undoCommand = onCommands[slot];
+    }
+
+    void offButtonWasPushed(int slot)
+    {
+        offCommands[slot].execute();
+        undoCommand = offCommands[slot];
+    }
+
+    void undoButtonWasPushed()
+    {
+        undoCommand.undo();
+    }
+
+    override string toString() const
+    {
+        string s = "\n------ Remote Control -------\n";
+        for (int i = 0; i < 7; ++i)
+        {
+            s ~= "[slot " ~ i.to!string ~ "] "
+                ~ format("%23s", (cast(Object)onCommands[i]).classinfo.name.split(".").back())
+                ~ format("%23s", (cast(Object)offCommands[i]).classinfo.name.split(".").back())
+                ~ "\n";
+        }
+
+        return s ~ "[undo] " ~ (cast(Object)undoCommand).classinfo.name.split(".").back() ~ "\n";
+    }
+}
diff --git a/command/remoteundostatusmacro/stereo.d b/command/remoteundostatusmacro/stereo.d
new file mode 100644
index 0000000..6493fdb
--- /dev/null
+++ b/command/remoteundostatusmacro/stereo.d
@@ -0,0 +1,44 @@
+module command.remoteundostatusmacro.stereo;
+
+import std.stdio : writeln;
+import std.conv : to;
+
+class Stereo
+{
+    string location;
+
+    this(string location)
+    {
+        this.location = location;
+    }
+
+    void on()
+    {
+        writeln(location ~ " stereo is on");
+    }
+
+    void off()
+    {
+        writeln(location ~ " stereo is off");
+    }
+
+    void setCD()
+    {
+        writeln(location ~ " stereo is set for CD input");
+    }
+
+    void setDVD()
+    {
+        writeln(location ~ " stereo is set for DVD input");
+    }
+
+    void setRadio()
+    {
+        writeln(location ~ " stereo is set for Radio");
+    }
+
+    void setVolume(int volume)
+    {
+        writeln(location ~ " stereo volume set to " ~ volume.to!string);
+    }
+}
diff --git a/command/remoteundostatusmacro/stereooffcommand.d b/command/remoteundostatusmacro/stereooffcommand.d
new file mode 100644
index 0000000..cfeb708
--- /dev/null
+++ b/command/remoteundostatusmacro/stereooffcommand.d
@@ -0,0 +1,26 @@
+module command.remoteundostatusmacro.stereooffcommand;
+
+import command.remoteundostatusmacro.command;
+import command.remoteundostatusmacro.stereo;
+
+class StereoOffCommand : Command
+{
+    Stereo stereo;
+ 
+    this(Stereo stereo)
+    {
+        this.stereo = stereo;
+    }
+ 
+    void execute()
+    {
+        stereo.off();
+    }
+
+    void undo()
+    {
+        stereo.on();
+        stereo.setCD();
+        stereo.setVolume(11);
+    }
+}
diff --git a/command/remoteundostatusmacro/stereoonwithcdcommand.d b/command/remoteundostatusmacro/stereoonwithcdcommand.d
new file mode 100644
index 0000000..32171c9
--- /dev/null
+++ b/command/remoteundostatusmacro/stereoonwithcdcommand.d
@@ -0,0 +1,26 @@
+module command.remoteundostatusmacro.stereoonwithcdcommand;
+
+import command.remoteundostatusmacro.command;
+import command.remoteundostatusmacro.stereo;
+
+class StereoOnWithCDCommand : Command
+{
+    Stereo stereo;
+ 
+    this(Stereo stereo)
+    {
+        this.stereo = stereo;
+    }
+ 
+    void execute()
+    {
+        stereo.on();
+        stereo.setCD();
+        stereo.setVolume(11);
+    }
+
+    void undo()
+    {
+        stereo.off();
+    }
+}
diff --git a/command/remoteundostatusmacro/tv.d b/command/remoteundostatusmacro/tv.d
new file mode 100644
index 0000000..cee24af
--- /dev/null
+++ b/command/remoteundostatusmacro/tv.d
@@ -0,0 +1,30 @@
+module command.remoteundostatusmacro.tv;
+
+import std.stdio : writeln;
+
+class TV
+{
+    private string location;
+    private int channel;
+
+    this(string location)
+    {
+        this.location = location;
+    }
+
+    void on()
+    {
+        writeln(location ~ " TV is on");
+    }
+
+    void off()
+    {
+        writeln(location ~ " TV is off");
+    }
+
+    void setInputChannel()
+    {
+        this.channel = 3;
+        writeln(location ~ " TV channel is set for DVD");
+    }
+}
diff --git a/command/remoteundostatusmacro/tvoffcommand.d b/command/remoteundostatusmacro/tvoffcommand.d
new file mode 100644
index 0000000..21e7170
--- /dev/null
+++ b/command/remoteundostatusmacro/tvoffcommand.d
@@ -0,0 +1,24 @@
+module command.remoteundostatusmacro.tvoffcommand;
+
+import command.remoteundostatusmacro.command;
+import command.remoteundostatusmacro.tv;
+
+class TVOffCommand : Command
+{
+    TV tv;
+
+    this(TV tv)
+    {
+        this.tv = tv;
+    }
+
+    void execute()
+    {
+        tv.off();
+    }
+
+    void undo()
+    {
+        tv.on();
+    }
+}
diff --git a/command/remoteundostatusmacro/tvoncommand.d b/command/remoteundostatusmacro/tvoncommand.d
new file mode 100644
index 0000000..9bca6a4
--- /dev/null
+++ b/command/remoteundostatusmacro/tvoncommand.d
@@ -0,0 +1,25 @@
+module command.remoteundostatusmacro.tvoncommand;
+
+import command.remoteundostatusmacro.command;
+import command.remoteundostatusmacro.tv;
+
+class TVOnCommand : Command
+{
+    TV tv;
+
+    this(TV tv)
+    {
+        this.tv = tv;
+    }
+
+    void execute()
+    {
+        tv.on();
+        tv.setInputChannel();
+    }
+
+    void undo()
+    {
+        tv.off();
+    }
+}