diff --git a/src/control.rs b/src/control.rs
index 23276add..4f476839 100644
--- a/src/control.rs
+++ b/src/control.rs
@@ -1,4 +1,3 @@
-pub mod chain;
 pub mod focus;
 pub mod mixer;
 pub mod plugin;
@@ -334,3 +333,75 @@ fn rename (_: &mut App) -> Usually<bool> { Ok(true) }
     //s.sequencer_mut().map(|s|s.monitoring = !s.monitoring);
     //Ok(true)
 //}
+//use crate::{core::*, model::*};
+//use super::focus::*;
+
+//pub fn handle (state: &mut Chain, event: &AppEvent) -> Usually<bool> {
+    //Ok(handle_focus(state, event, keymap!(Chain {
+        //[Up,    NONE, "focus_up",   "focus row above",
+            //|s: &mut Chain|s.handle_focus(&FocusEvent::Backward)],
+        //[Down,  NONE, "focus_down", "focus row below",
+            //|s: &mut Chain|s.handle_focus(&FocusEvent::Forward)],
+        //[Enter, NONE, "focus_down", "focus row below",
+            //|s: &mut Chain|s.handle_focus(&FocusEvent::Inward)],
+        //[Esc,   NONE, "focus_down", "focus row below",
+            //|s: &mut Chain|s.handle_focus(&FocusEvent::Outward)],
+    //}))? || handle_keymap(state, event, keymap!(Chain {
+        //[Char('a'), NONE, "add_device", "add a device", add_device]
+    //}))?)
+//}
+
+//fn add_device (state: &mut Chain) -> Usually<bool> {
+    //state.adding = true;
+    //Ok(true)
+//}
+
+//impl Focus for Chain {
+    //fn unfocus (&mut self) {
+        //self.focused = false
+    //}
+    //fn focused (&self) -> Option<&Box<dyn Device>> {
+        //match self.focused {
+            //true  => self.items.get(self.focus),
+            //false => None
+        //}
+    //}
+    //fn focused_mut (&mut self) -> Option<&mut Box<dyn Device>> {
+        //match self.focused {
+            //true  => self.items.get_mut(self.focus),
+            //false => None
+        //}
+    //}
+    //fn handle_focus (&mut self, event: &FocusEvent) -> Usually<bool> {
+        //Ok(match event {
+            //FocusEvent::Backward => {
+                //if self.focus == 0 {
+                    //self.focus = self.items.len();
+                //}
+                //self.focus = self.focus - 1;
+                //true
+            //},
+            //FocusEvent::Forward => {
+                //self.focus = self.focus + 1;
+                //if self.focus >= self.items.len() {
+                    //self.focus = 0;
+                //}
+                //true
+            //},
+            //FocusEvent::Inward => {
+                //self.focused = true;
+                //self.items[self.focus].handle(&AppEvent::Focus)?;
+                //true
+            //},
+            //FocusEvent::Outward => {
+                //if self.focused {
+                    //self.focused = false;
+                    //self.items[self.focus].handle(&AppEvent::Blur)?;
+                    //true
+                //} else {
+                    //false
+                //}
+            //},
+        //})
+    //}
+//}
diff --git a/src/control/chain.rs b/src/control/chain.rs
deleted file mode 100644
index 4087fa61..00000000
--- a/src/control/chain.rs
+++ /dev/null
@@ -1,72 +0,0 @@
-use crate::{core::*, model::*};
-use super::focus::*;
-
-pub fn handle (state: &mut Chain, event: &AppEvent) -> Usually<bool> {
-    Ok(handle_focus(state, event, keymap!(Chain {
-        [Up,    NONE, "focus_up",   "focus row above",
-            |s: &mut Chain|s.handle_focus(&FocusEvent::Backward)],
-        [Down,  NONE, "focus_down", "focus row below",
-            |s: &mut Chain|s.handle_focus(&FocusEvent::Forward)],
-        [Enter, NONE, "focus_down", "focus row below",
-            |s: &mut Chain|s.handle_focus(&FocusEvent::Inward)],
-        [Esc,   NONE, "focus_down", "focus row below",
-            |s: &mut Chain|s.handle_focus(&FocusEvent::Outward)],
-    }))? || handle_keymap(state, event, keymap!(Chain {
-        [Char('a'), NONE, "add_device", "add a device", add_device]
-    }))?)
-}
-
-fn add_device (state: &mut Chain) -> Usually<bool> {
-    state.adding = true;
-    Ok(true)
-}
-
-impl Focus for Chain {
-    fn unfocus (&mut self) {
-        self.focused = false
-    }
-    fn focused (&self) -> Option<&Box<dyn Device>> {
-        match self.focused {
-            true  => self.items.get(self.focus),
-            false => None
-        }
-    }
-    fn focused_mut (&mut self) -> Option<&mut Box<dyn Device>> {
-        match self.focused {
-            true  => self.items.get_mut(self.focus),
-            false => None
-        }
-    }
-    fn handle_focus (&mut self, event: &FocusEvent) -> Usually<bool> {
-        Ok(match event {
-            FocusEvent::Backward => {
-                if self.focus == 0 {
-                    self.focus = self.items.len();
-                }
-                self.focus = self.focus - 1;
-                true
-            },
-            FocusEvent::Forward => {
-                self.focus = self.focus + 1;
-                if self.focus >= self.items.len() {
-                    self.focus = 0;
-                }
-                true
-            },
-            FocusEvent::Inward => {
-                self.focused = true;
-                self.items[self.focus].handle(&AppEvent::Focus)?;
-                true
-            },
-            FocusEvent::Outward => {
-                if self.focused {
-                    self.focused = false;
-                    self.items[self.focus].handle(&AppEvent::Blur)?;
-                    true
-                } else {
-                    false
-                }
-            },
-        })
-    }
-}
diff --git a/src/main.rs b/src/main.rs
index 52c135cc..1a91138c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -112,7 +112,7 @@ pub struct App {
     pub time_cursor: usize,
 }
 
-process!(App |self, client, scope| {
+process!(App |self, _client, scope| {
     let transport = self.transport.as_ref().unwrap().query().unwrap();
     self.playing  = Some(transport.state);
     self.playhead = transport.pos.frame() as usize;
@@ -208,9 +208,6 @@ impl App {
             self.scenes.get_mut(id).map(|t|(id, t))
         } }
     }
-    pub fn chain (&self) -> Option<&Chain> {
-        Some(&self.track()?.1.chain)
-    }
     pub fn phrase_id (&self) -> Option<usize> {
         let (track_id, _) = self.track()?;
         let (_, scene) = self.scene()?;
diff --git a/src/model.rs b/src/model.rs
index 32f2ea39..0cb54422 100644
--- a/src/model.rs
+++ b/src/model.rs
@@ -1,4 +1,3 @@
-pub mod chain;
 pub mod looper;
 pub mod mixer;
 pub mod phrase;
@@ -10,7 +9,6 @@ pub mod track;
 pub use self::phrase::Phrase;
 pub use self::scene::Scene;
 pub use self::track::Track;
-pub use self::chain::Chain;
 pub use self::sampler::{Sampler, Sample};
 pub use self::mixer::Mixer;
 pub use self::plugin::{Plugin, PluginKind, lv2::LV2Plugin};
diff --git a/src/model/chain.rs b/src/model/chain.rs
deleted file mode 100644
index ac091b14..00000000
--- a/src/model/chain.rs
+++ /dev/null
@@ -1,46 +0,0 @@
-use crate::{core::*, view::*};
-
-pub struct Chain {
-    pub name:    String,
-    pub focused: bool,
-    pub focus:   usize,
-    pub items:   Vec<Box<dyn Device>>,
-    pub view:    ChainViewMode,
-    pub adding:  bool,
-}
-render!(Chain = crate::view::chain::render);
-handle!(Chain = crate::control::chain::handle);
-process!(Chain);
-impl Chain {
-    pub fn new (name: &str, items: Option<Vec<Box<dyn Device>>>) -> Usually<Self> {
-        Ok(Self {
-            name: name.into(),
-            focused: false,
-            focus: 0,
-            items: items.unwrap_or_else(||vec![]),
-            view: ChainViewMode::Column,
-            adding: false
-        })
-    }
-}
-
-impl PortList for Chain {
-    fn midi_ins (&self) -> Usually<Vec<String>> {
-        if let Some(device) = self.items.get(0) {
-            device.midi_ins()
-        } else {
-            Ok(vec![])
-        }
-    }
-    fn audio_outs (&self) -> Usually<Vec<String>> {
-        if let Some(device) = self.items.get(self.items.len().saturating_sub(1)) {
-            device.audio_outs()
-        } else {
-            Ok(vec![])
-        }
-    }
-}
-
-pub fn process (_: &mut Chain, _: &Client, _: &ProcessScope) -> Control {
-    Control::Continue
-}
diff --git a/src/model/track.rs b/src/model/track.rs
index 181f2e8b..9d352af9 100644
--- a/src/model/track.rs
+++ b/src/model/track.rs
@@ -18,7 +18,9 @@ pub struct Track {
     /// Red keys on piano roll.
     pub notes_on:   Vec<bool>,
     /// Device chain
-    pub chain:      Chain,
+    pub devices:    Vec<Box<dyn Device>>,
+    /// Device selector
+    pub device:     usize,
 }
 
 impl Track {
@@ -30,14 +32,15 @@ impl Track {
     ) -> Usually<Self> {
         Ok(Self {
             name:       name.to_string(),
-            chain:      Chain::new(&name, devices)?,
             midi_out:   jack.register_port(name, MidiOut)?,
             notes_on:   vec![],
             monitoring: false,
             recording:  false,
             overdub:    true,
             sequence:   None,
-            phrases:    phrases.unwrap_or_else(||vec![])
+            phrases:    phrases.unwrap_or_else(||vec![]),
+            devices:    devices.unwrap_or_else(||vec![]),
+            device:     0,
         })
     }
 }
diff --git a/src/view.rs b/src/view.rs
index 533c7f74..4a31679c 100644
--- a/src/view.rs
+++ b/src/view.rs
@@ -42,7 +42,7 @@ render!(App |self, buf, area| {
         let track = self.tracks.get(self.track_cursor - 1);
         y = y + ChainView {
             focused: self.section == 1,
-            chain:   track.map(|t|&t.chain),
+            chain:   track,
         }.render(buf, Rect { x, y, width, height: height / 3 })?.height;
 
         y = y + SequencerView {
diff --git a/src/view/chain.rs b/src/view/chain.rs
index b0420518..77afee1e 100644
--- a/src/view/chain.rs
+++ b/src/view/chain.rs
@@ -11,7 +11,7 @@ pub enum ChainViewMode {
 
 pub struct ChainView<'a> {
     pub focused: bool,
-    pub chain:   Option<&'a Chain>,
+    pub chain:   Option<&'a Track>,
 }
 
 impl<'a> Render for ChainView<'a> {
@@ -34,12 +34,12 @@ impl<'a> Render for ChainView<'a> {
 }
 
 pub fn draw_as_row (
-    state: &Chain, buf: &mut Buffer, area: Rect, style: Option<Style>
+    state: &Track, buf: &mut Buffer, area: Rect, style: Option<Style>
 ) -> Usually<(Rect, Vec<Rect>)> {
     let Rect { mut x, y, width, height } = area;
     let mut h = 3u16;
     let mut frames = vec![];
-    for (i, device) in state.items.iter().enumerate() {
+    for (i, device) in state.devices.iter().enumerate() {
         let x2 = 0u16;
         let _y2 = 1u16;
         //for port in device.midi_ins()?.iter() {
@@ -74,39 +74,11 @@ pub fn draw_as_row (
     let label = "[Add device…]";
     label.blit(buf, x + 1, area.y + 1, Some(Style::default().dim()));
     x = x + 1 + label.len() as u16 + 1;
-    Ok((Rect { x: area.x, y: area.y, width, height: h }, frames))
-}
-
-pub fn render (state: &Chain, buf: &mut Buffer, area: Rect)
-    -> Usually<Rect>
-{
-    let Rect { x, y, .. } = area;
-    let selected = Some(if state.focused {
-        Style::default().green().not_dim()
-    } else {
-        Style::default().green().dim()
-    });
-    let result = match state.view {
-        ChainViewMode::Hidden => Rect { x, y, width: 0, height: 0 },
-        ChainViewMode::Compact => {
-            let area = Rect { x, y, width: (state.name.len() + 4) as u16, height: 3 };
-            buf.set_string(area.x + 2, area.y + 1, &state.name, Style::default());
-            draw_box_styled(buf, area, selected)
-        },
-        ChainViewMode::Row => {
-            draw_box_styled(buf, area, selected);
-            let (area, _) = Row::draw(buf, area, &state.items, 0)?;
-            area
-        },
-        ChainViewMode::Column => {
-            draw_as_column(state, buf, area, selected)?
-        },
-    };
-    Ok(result)
+    Ok((Rect { x: area.x, y: area.y, width: x, height: h }, frames))
 }
 
 pub fn draw_as_column (
-    state: &Chain, buf: &mut Buffer, area: Rect, selected: Option<Style>
+    state: &Track, buf: &mut Buffer, area: Rect, selected: Option<Style>
 ) -> Usually<Rect> {
     //let area = Rect { x, y, width: 40, height: 30 };
     //let mut y = area.y;
@@ -150,7 +122,7 @@ pub fn draw_as_column (
     //let (area, areas) = Column::draw(buf, area, &state.items, 0)?;
     let mut w = 0u16;
     let mut frames = vec![];
-    for device in state.items.iter() {
+    for device in state.devices.iter() {
         let style_midi  = Style::default().black().bold().on_green();
         let style_audio = Style::default().black().bold().on_red();
         let midi_ins    = device.midi_ins()?;
@@ -185,6 +157,34 @@ pub fn draw_as_column (
             y = y + 1;
         }
     }
-    draw_box_styled(buf, frames[state.focus], selected);
+    draw_box_styled(buf, frames[state.device], selected);
     Ok(area)
 }
+
+//pub fn render (state: &Chain, buf: &mut Buffer, area: Rect)
+    //-> Usually<Rect>
+//{
+    //let Rect { x, y, .. } = area;
+    //let selected = Some(if state.focused {
+        //Style::default().green().not_dim()
+    //} else {
+        //Style::default().green().dim()
+    //});
+    //let result = match state.view {
+        //ChainViewMode::Hidden => Rect { x, y, width: 0, height: 0 },
+        //ChainViewMode::Compact => {
+            //let area = Rect { x, y, width: (state.name.len() + 4) as u16, height: 3 };
+            //buf.set_string(area.x + 2, area.y + 1, &state.name, Style::default());
+            //draw_box_styled(buf, area, selected)
+        //},
+        //ChainViewMode::Row => {
+            //draw_box_styled(buf, area, selected);
+            //let (area, _) = Row::draw(buf, area, &state.items, 0)?;
+            //area
+        //},
+        //ChainViewMode::Column => {
+            //draw_as_column(state, buf, area, selected)?
+        //},
+    //};
+    //Ok(result)
+//}