diff --git a/src/lib.rs b/src/lib.rs
index 82661ad..f9071a3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -992,7 +992,7 @@ impl VmcExtMidiCcVal {
 }
 
 #[derive(Debug)]
-struct VmcExtMidiCcBit {
+pub struct VmcExtMidiCcBit {
     knob: i32,
     active: bool,
 }
@@ -1039,8 +1039,21 @@ impl VmcMessage for VmcExtMidiCcBit {
     }
 }
 
+impl VmcExtMidiCcBit {
+    pub fn new(knob: i32, active: bool) -> MsgNewResult<Self> {
+        return Ok(Self { knob, active});
+    }
+    pub fn new_vmc_message(knob: i32, active: bool) -> TraitMsgNewResult {
+        let message = Self::new(knob, active);
+        match message {
+            Ok(val) => Ok(Box::new(val)),
+            Err(val) => Err(val),
+        }
+    }
+}
+
 #[derive(Debug)]
-struct DeviceTranform {
+pub struct DeviceTranform {
     addr: String,
     serial: String,
     transform: Transform3D,
@@ -1113,6 +1126,18 @@ impl VmcMessage for DeviceTranform {
     }
 }
 
+impl DeviceTranform {
+    pub fn new(addr: String, serial: String, transform: Transform3D) ->MsgNewResult<Self> {
+        Ok(Self { addr, serial, transform})
+    }
+    pub fn new_vmc_message(addr: String, serial: String, transform: Transform3D) ->TraitMsgNewResult {
+        match Self::new(addr, serial, transform) {
+            Ok(val) => Ok(Box::new(val)),
+            Err(val) => Err(val)
+        }
+    }
+}
+
 #[derive(Debug)]
 struct VmcExtRvc {
     enable: bool,