diff --git a/rmk-macro/src/layout.rs b/rmk-macro/src/layout.rs
index 25d259c2..8519bfdd 100644
--- a/rmk-macro/src/layout.rs
+++ b/rmk-macro/src/layout.rs
@@ -219,6 +219,54 @@ fn parse_key(key: String) -> TokenStream2 {
                 ::rmk::df!(#layer)
             }
         }
+        "MTH(" => {
+            let keys: Vec<&str> = key
+                .trim_start_matches("MTH(")
+                .trim_end_matches(")")
+                .split_terminator(",")
+                .map(|w| w.trim())
+                .filter(|w| w.len() > 0)
+                .collect();
+            if keys.len() != 2 {
+                return quote! {
+                    compile_error!("keyboard.toml: MTH(modifiers, key) invalid, please check the documentation: https://haobogu.github.io/rmk/keyboard_configuration.html");
+                };
+            }
+            let ident = format_ident!("{}", keys[0].to_string());
+
+            let (right, gui, alt, shift, ctrl) = parse_modifiers(keys[1]);
+
+            if (gui || alt || shift || ctrl) == false {
+                return quote! {
+                    compile_error!("keyboard.toml: modifier in MTH(modifier, key) is not valid! Please check the documentation: https://haobogu.github.io/rmk/keyboard_configuration.html");
+                };
+            }
+            quote! {
+                ::rmk::mth!(#ident, ::rmk::keycode::ModifierCombination::new_from(#right, #gui, #alt, #shift, #ctrl))
+            }
+
+        }
+        "TH(" => {
+            let keys: Vec<&str> = key
+                .trim_start_matches("TH(")
+                .trim_end_matches(")")
+                .split_terminator(",")
+                .map(|w| w.trim())
+                .filter(|w| w.len() > 0)
+                .collect();
+            if keys.len() != 2 {
+                return quote! {
+                    compile_error!("keyboard.toml: TH(modifiers, key) invalid, please check the documentation: https://haobogu.github.io/rmk/keyboard_configuration.html");
+                };
+            }
+            let ident1 = format_ident!("{}", keys[0].to_string());
+            let ident2 = format_ident!("{}", keys[1].to_string());
+
+            quote! {
+                ::rmk::th!(#ident1, #ident2)
+            }
+
+        }
         _ => {
             let ident = format_ident!("{}", key);
             quote! {::rmk::k!(#ident) }
diff --git a/rmk/src/layout_macro.rs b/rmk/src/layout_macro.rs
index 7b100b91..cb52e863 100644
--- a/rmk/src/layout_macro.rs
+++ b/rmk/src/layout_macro.rs
@@ -63,7 +63,7 @@ macro_rules! lt {
 /// Create a modifier-tap-hold action
 #[macro_export]
 macro_rules! mth {
-    ($m: expr, $k: ident) => {
+    ($k: ident, $m: expr) => {
         $crate::action::KeyAction::ModifierTapHold(
             $m,
             $crate::action::Action::Key($crate::keycode::KeyCode::$k),
@@ -74,7 +74,7 @@ macro_rules! mth {
 /// Create a tap-hold action
 #[macro_export]
 macro_rules! th {
-    ($h: ident, $t: ident) => {
+    ($t: ident, $h: ident) => {
         $crate::action::KeyAction::TapHold(
             $t,
             $h,