diff --git a/engine/src/output.rs b/engine/src/output.rs
index 8cf71398..c17e849b 100644
--- a/engine/src/output.rs
+++ b/engine/src/output.rs
@@ -21,6 +21,14 @@ pub trait Output<E: Engine> {
                 Some($cb)
             }
         }
+        impl<E: Engine, $($($L),*$($T $(: $U)?),*)?> Render<E> for $Struct $(<$($L,)* E, $($T),*>)? {
+            fn min_size (&self, to: E::Size) -> Perhaps<E::Size> {
+                self.content().map(|content|content.min_size(to)).unwrap_or(Ok(None))
+            }
+            fn render (&self, to: &mut E::Output) -> Usually<()> {
+                self.content().map(|content|content.render(to)).unwrap_or(Ok(()))
+            }
+        }
     };
 
     // Implement for a specific engine
@@ -39,6 +47,20 @@ pub trait Output<E: Engine> {
                 Some($cb)
             }
         }
+        impl $(<
+            $($($L),+)?
+            $($($T$(:$U)?),+)?
+        >)? Render<$E> for $Struct $(<
+            $($($L),+)?
+            $($($T),+)?
+        >)? {
+            fn min_size (&self, to: <$E as Engine>::Size) -> Perhaps<<$E as Engine>::Size> {
+                self.content().map(|content|content.min_size(to)).unwrap_or(Ok(None))
+            }
+            fn render (&self, to: &mut <$E as Engine>::Output) -> Usually<()> {
+                self.content().map(|content|content.render(to)).unwrap_or(Ok(()))
+            }
+        }
     }
 
 }
diff --git a/engine/src/tui.rs b/engine/src/tui.rs
index 52bca804..33ebafa6 100644
--- a/engine/src/tui.rs
+++ b/engine/src/tui.rs
@@ -367,7 +367,6 @@ pub fn buffer_update (buf: &mut Buffer, area: [u16;4], callback: &impl Fn(&mut C
     }
 }
 
-/*
 /// Define a key
 pub const fn key (code: KeyCode) -> KeyEvent {
     let modifiers = KeyModifiers::NONE;
@@ -391,6 +390,7 @@ pub const fn shift (key: KeyEvent) -> KeyEvent {
     KeyEvent { modifiers: key.modifiers.union(KeyModifiers::SHIFT), ..key }
 }
 
+/*
 /// Define a keymap
 #[macro_export] macro_rules! keymap {
     ($T:ty { $([$k:ident $(($char:literal))?, $m:ident, $n: literal, $d: literal, $f: expr]),* $(,)? }) => {
diff --git a/src/border.rs b/src/border.rs
index 3de2a44c..522effa2 100644
--- a/src/border.rs
+++ b/src/border.rs
@@ -152,7 +152,7 @@ border! {
         "┃"     "┃"
         "┗" "━" "┛" fn style (&self) -> Option<Style> { Some(self.0) }
     },
-    Tab {
+    TabLike {
         "╭" "─" "╮"
         "│"     "│"
         "│" " " "│" fn style (&self) -> Option<Style> { Some(self.0) }
diff --git a/src/lib.rs b/src/lib.rs
index c7645bd4..060b0df6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -15,7 +15,7 @@ pub(crate) use ::tek_layout::{
         crossterm::{
             self,
             event::{
-                KeyEvent, KeyEventKind, KeyEventState, KeyModifiers,
+                Event, KeyEvent, KeyEventKind, KeyEventState, KeyModifiers,
                 KeyCode::{self, *},
             }
         },
diff --git a/src/midi/midi_editor.rs b/src/midi/midi_editor.rs
index 3e154d40..6bfc59a8 100644
--- a/src/midi/midi_editor.rs
+++ b/src/midi/midi_editor.rs
@@ -30,8 +30,11 @@ pub enum PhraseCommand {
 }
 
 event_map_input_to_command!(Tui: MidiEditor: PhraseCommand: MidiEditor::KEYS);
+
+pub(crate) type KeyMapping<const N: usize, E, T, U> = [(E, &'static dyn Fn(&T)->U);N];
+
 impl MidiEditor {
-    const KEYS: KeyMapping<31, Self> = [
+    const KEYS: KeyMapping<31, Event, Self, PhraseCommand> = [
         (kexp!(Ctrl-Alt-Up),    &|s: &Self|SetNoteScroll(s.note_point() + 3)),
         (kexp!(Ctrl-Alt-Down),  &|s: &Self|SetNoteScroll(s.note_point().saturating_sub(3))),
         (kexp!(Ctrl-Alt-Left),  &|s: &Self|SetTimeScroll(s.time_point().saturating_sub(s.time_zoom().get()))),
diff --git a/src/mixer.rs b/src/mixer.rs
index 54c28716..cc9bad39 100644
--- a/src/mixer.rs
+++ b/src/mixer.rs
@@ -165,8 +165,8 @@ impl<'a> Render<Tui> for TrackView<'a> {
     //}
 //}
 
-handle!(<Tui>|self:Mixer,engine|{
-    if let TuiEvent::Input(crossterm::event::Event::Key(event)) = engine.event() {
+handle!(<Tui>|self: Mixer, engine|{
+    if let crossterm::event::Event::Key(event) = engine.event() {
 
         match event.code {
             //KeyCode::Char('c') => {
diff --git a/src/style.rs b/src/style.rs
index fb6b4fd9..2fa104b4 100644
--- a/src/style.rs
+++ b/src/style.rs
@@ -1,23 +1,25 @@
 use crate::*;
 
-impl Tui {
-    pub(crate) fn fg <W: Render<Tui>> (color: Color, w: W) -> Foreground<W> {
+pub trait TuiStyle {
+    fn fg <W: Render<Tui>> (color: Color, w: W) -> Foreground<W> {
         Foreground(color, w)
     }
-    pub(crate) fn bg <W: Render<Tui>> (color: Color, w: W) -> Background<W> {
+    fn bg <W: Render<Tui>> (color: Color, w: W) -> Background<W> {
         Background(color, w)
     }
-    pub(crate) fn fg_bg <W: Render<Tui>> (fg: Color, bg: Color, w: W) -> Background<Foreground<W>> {
+    fn fg_bg <W: Render<Tui>> (fg: Color, bg: Color, w: W) -> Background<Foreground<W>> {
         Background(bg, Foreground(fg, w))
     }
-    pub(crate) fn bold <W: Render<Tui>> (on: bool, w: W) -> Bold<W> {
+    fn bold <W: Render<Tui>> (on: bool, w: W) -> Bold<W> {
         Bold(on, w)
     }
-    pub(crate) fn border <W: Render<Tui>, S: BorderStyle> (style: S, w: W) -> Bordered<S, W> {
+    fn border <W: Render<Tui>, S: BorderStyle> (style: S, w: W) -> Bordered<S, W> {
         Bordered(style, w)
     }
 }
 
+impl TuiStyle for Tui {}
+
 pub struct Bold<W: Render<Tui>>(pub bool, W);
 
 impl<W: Render<Tui>> Render<Tui> for Bold<W> {