diff --git a/OscMacroDefinitions.py b/OscMacroDefinitions.py
index f6fb8fa..d1217b9 100644
--- a/OscMacroDefinitions.py
+++ b/OscMacroDefinitions.py
@@ -107,6 +107,13 @@ class HogDevice():
         logger.info("ASSERT on current master.")
         self.osc.button_press(ctx.device, "/hog/hardware/assert")
 
+    def _master_release(self, ctx):
+        if (len(ctx.master.targets) != 0):
+            logger.error("ERROR: limited to releasing current master only.")
+            return
+        logger.info("RELEASE on current master.")
+        self.osc.button_press(ctx.device, "/hog/hardware/release")
+
     def _master_fade(self, ctx):
         if (ctx.number) is None:
             logger.error("ERROR: Missing required argument for LEVEL")
@@ -194,6 +201,7 @@ class HogDevice():
     command = {"GM":  _master_go,
                "HM":  _master_halt,
                "AM":  _master_assert,
+               "RM":  _master_release,
                "FM":  _master_fade,
                "FGM": _master_fade_grand,
                "CM":  _master_choose,
diff --git a/README.md b/README.md
index bdddfe1..bcda93e 100644
--- a/README.md
+++ b/README.md
@@ -66,11 +66,11 @@ Only features that are supported in both OSC and Comment Macros are able to be i
 | GM | Go Master | Yes | |
 | HM | Halt Master | Yes | |
 | AM | Assert Master | Yes | on current master only |
-| RM | Release Master | no | |
+| RM | Release Master | Yes | on current master only |
 | RA | Relase All | Yes | |
 | RO | Release Others | no | |
-| FM | Fade Master | Yes | no times, no *
-| FGM | Fade Grand Master | Yes | no times
+| FM | Fade Master | Yes | no times, no * |
+| FGM | Fade Grand Master | Yes | no times |
 | CM | Choose Master | Yes | |
 | GL | Go List | Yes | |
 | HL | Halt List | Yes | |