diff --git a/nested/src/core/port.rs b/nested/src/core/port.rs
index 5c666da..5d03f0d 100644
--- a/nested/src/core/port.rs
+++ b/nested/src/core/port.rs
@@ -9,7 +9,7 @@ pub trait UpdateTask: Send + Sync {
     fn update(&self);
 }
 
-/*\
+                    /*\
 <<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
                  View Port
 <<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
@@ -44,12 +44,17 @@ where
         self.cast.write().unwrap().reset(view);
     }
 
+    pub fn get_cast(&self) -> Arc<RwLock<ObserverBroadcast<V>>> {
+        self.cast.clone()
+    }
+    
     pub fn add_observer(&self, observer: Arc<RwLock<dyn Observer<V>>>) {
         self.update();
         self.cast
             .write()
             .unwrap()
             .add_observer(Arc::downgrade(&observer));
+
         observer
             .write()
             .unwrap()
diff --git a/nested/src/index/buffer.rs b/nested/src/index/buffer.rs
index 98f2777..bf86073 100644
--- a/nested/src/index/buffer.rs
+++ b/nested/src/index/buffer.rs
@@ -1,6 +1,6 @@
 use {
     crate::{
-        core::{InnerViewPort, Observer, ObserverBroadcast, View},
+        core::{InnerViewPort, ViewPort, Observer, ObserverBroadcast, View},
         index::{IndexArea, IndexView},
     },
     std::sync::RwLock,
@@ -42,7 +42,7 @@ where
     Item: Clone + Send + Sync + 'static,
 {
     data: Arc<RwLock<HashMap<Key, Item>>>,
-    cast: Arc<RwLock<ObserverBroadcast<dyn IndexView<Key, Item = Item>>>>,
+    port: InnerViewPort<dyn IndexView<Key, Item = Item>>,
 }
 
 impl<Key, Item> IndexBuffer<Key, Item>
@@ -50,19 +50,23 @@ where
     Key: Clone + Hash + Eq + Send + Sync + 'static,
     Item: Clone + Send + Sync + 'static,
 {
-    pub fn new(port: InnerViewPort<dyn IndexView<Key, Item = Item>>) -> Self {
+    pub fn with_port(port: InnerViewPort<dyn IndexView<Key, Item = Item>>) -> Self {
         let data = Arc::new(RwLock::new(HashMap::<Key, Item>::new()));
         port.set_view(Some(Arc::new(IndexBufferView(data.clone()))));
 
         IndexBuffer {
             data,
-            cast: port.get_broadcast(),
+            port
         }
     }
 
+    pub fn new() -> Self {
+        IndexBuffer::with_port(ViewPort::new().into_inner())
+    }
+
     pub fn insert(&mut self, key: Key, item: Item) {
         self.data.write().unwrap().insert(key.clone(), item);
-        self.cast.notify(&IndexArea::Set(vec![key]));
+        self.port.notify(&IndexArea::Set(vec![key]));
     }
 
     pub fn insert_iter<T>(&mut self, iter: T)
@@ -76,6 +80,6 @@ where
 
     pub fn remove(&mut self, key: Key) {
         self.data.write().unwrap().remove(&key);
-        self.cast.notify(&IndexArea::Set(vec![key]));
+        self.port.notify(&IndexArea::Set(vec![key]));
     }
 }
diff --git a/nested/src/integer/add.rs b/nested/src/integer/add.rs
index 0f8d1a1..888234a 100644
--- a/nested/src/integer/add.rs
+++ b/nested/src/integer/add.rs
@@ -51,7 +51,7 @@ impl Add {
             radix,
             a: proj_helper.new_sequence_arg(0, a, |s: &mut Self, _digit_idx| s.update()),
             b: proj_helper.new_sequence_arg(1, b, |s: &mut Self, _digit_idx| s.update()),
-            c: VecBuffer::new(c),
+            c: VecBuffer::with_port(c),
             _proj_helper: proj_helper,
         }));
         add
diff --git a/nested/src/integer/editor.rs b/nested/src/integer/editor.rs
index 4f65b84..1c1fd17 100644
--- a/nested/src/integer/editor.rs
+++ b/nested/src/integer/editor.rs
@@ -1,8 +1,8 @@
 use {
     crate::{
         core::{OuterViewPort, ViewPort},
-        list::{sexpr::ListDecoration, ListEditor},
-        sequence::{SequenceView, SequenceViewExt},
+        list::{PTYListEditor},
+        sequence::{SequenceView, SequenceViewExt, decorator::{PTYSeqDecorate, SeqDecorStyle}},
         singleton::{SingletonBuffer, SingletonView},
         terminal::{
             TerminalAtom, TerminalEditor, TerminalEditorResult, TerminalEvent, TerminalStyle,
@@ -13,29 +13,27 @@ use {
     std::sync::Arc,
     std::sync::RwLock,
     termion::event::{Event, Key},
+    cgmath::Vector2
 };
 
 //<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
 
 pub struct DigitEditor {
     radix: u32,
-    data: SingletonBuffer<Option<char>>,
-    data_port: ViewPort<dyn SingletonView<Item = Option<char>>>,
+    data: SingletonBuffer<Option<char>>
 }
 
 impl DigitEditor {
     pub fn new(radix: u32) -> Self {
-        let data_port = ViewPort::new();
         DigitEditor {
             radix,
-            data: SingletonBuffer::new(None, data_port.inner()),
-            data_port,
+            data: SingletonBuffer::new(None),
         }
     }
 
     pub fn get_data_port(&self) -> OuterViewPort<dyn SingletonView<Item = Option<u32>>> {
         let radix = self.radix;
-        self.data_port.outer().map(move |c| c?.to_digit(radix))
+        self.data.get_port().map(move |c| c?.to_digit(radix))
     }
 }
 
@@ -43,8 +41,8 @@ impl TreeNav for DigitEditor {}
 impl TerminalEditor for DigitEditor {
     fn get_term_view(&self) -> OuterViewPort<dyn TerminalView> {
         let radix = self.radix;
-        self.data_port
-            .outer()
+        self.data
+            .get_port()
             .map(move |c| {
                 TerminalAtom::new(
                     c.unwrap_or('?'),
@@ -81,24 +79,24 @@ impl TerminalTreeEditor for DigitEditor {}
 
 pub struct PosIntEditor {
     radix: u32,
-    digits_editor:
-        ListEditor<DigitEditor, Box<dyn Fn() -> Arc<RwLock<DigitEditor>> + Send + Sync + 'static>>,
+    digits_editor: PTYListEditor<DigitEditor>
 }
 
 impl PosIntEditor {
     pub fn new(radix: u32) -> Self {
         PosIntEditor {
             radix,
-            digits_editor: ListEditor::new(
+            digits_editor: PTYListEditor::new(
                 Box::new(move || Arc::new(RwLock::new(DigitEditor::new(radix)))),
-                crate::list::ListEditorStyle::Hex,
+                SeqDecorStyle::Hex,
+                0
             ),
         }
     }
 
     pub fn get_data_port(&self) -> OuterViewPort<dyn SequenceView<Item = u32>> {
         let radix = self.radix;
-        self.digits_editor
+        self.digits_editor.editor
             .get_data_port()
             .filter_map(move |digit_editor| {
                 digit_editor.read().unwrap().data.get()?.to_digit(radix)
@@ -132,44 +130,17 @@ impl TreeNav for PosIntEditor {
     fn goto(&mut self, cur: TreeCursor) -> TreeNavResult {
         self.digits_editor.goto(cur)
     }
-    fn goto_home(&mut self) -> TreeNavResult {
-        self.digits_editor.goto_home()
-    }
-    fn goto_end(&mut self) -> TreeNavResult {
-        self.digits_editor.goto_end()
-    }
-    fn pxev(&mut self) -> TreeNavResult {
-        self.digits_editor.pxev()
-    }
-    fn nexd(&mut self) -> TreeNavResult {
-        self.digits_editor.nexd()
-    }
-    fn up(&mut self) -> TreeNavResult {
-        self.digits_editor.up()
-    }
-    fn dn(&mut self) -> TreeNavResult {
-        self.digits_editor.dn()
+    fn goby(&mut self, cur: Vector2<isize>) -> TreeNavResult {
+        self.digits_editor.goby(cur)
     }
+
 }
 
 impl TerminalEditor for PosIntEditor {
     fn get_term_view(&self) -> OuterViewPort<dyn TerminalView> {
-        self.digits_editor
+        self.digits_editor.editor
             .get_seg_seq_view()
-            .decorate(
-                match self.radix {
-                    2 => "0b",
-                    8 => "0o",
-                    10 => "0d",
-                    16 => "0x",
-                    _ => "",
-                },
-                "",
-                "",
-                0,
-            )
-            .to_grid_horizontal()
-            .flatten()
+            .pty_decorate(SeqDecorStyle::Hex, 0)
     }
 
     fn handle_terminal_event(&mut self, event: &TerminalEvent) -> TerminalEditorResult {
diff --git a/nested/src/integer/radix.rs b/nested/src/integer/radix.rs
index 7eae64c..8aca421 100644
--- a/nested/src/integer/radix.rs
+++ b/nested/src/integer/radix.rs
@@ -26,7 +26,7 @@ impl RadixProjection {
             src_radix,
             dst_radix,
             src_digits: None,
-            dst_digits: RwLock::new(VecBuffer::new(dst_digits)),
+            dst_digits: RwLock::new(VecBuffer::with_port(dst_digits)),
         }));
         src_digits.add_observer(proj.clone());
         proj
diff --git a/nested/src/singleton/buffer.rs b/nested/src/singleton/buffer.rs
index f1f0b16..d7e9596 100644
--- a/nested/src/singleton/buffer.rs
+++ b/nested/src/singleton/buffer.rs
@@ -1,6 +1,6 @@
 use {
     crate::{
-        core::{InnerViewPort, Observer, ObserverBroadcast, View},
+        core::{InnerViewPort, OuterViewPort, Observer, ObserverBroadcast, View, ViewPort},
         singleton::SingletonView,
     },
     std::sync::RwLock,
@@ -40,23 +40,31 @@ where
     T: Clone + Send + Sync + 'static,
 {
     value: Arc<RwLock<T>>,
-    cast: Arc<RwLock<ObserverBroadcast<dyn SingletonView<Item = T>>>>,
+    port: InnerViewPort<dyn SingletonView<Item = T>>
 }
 
 impl<T> SingletonBuffer<T>
 where
     T: Clone + Send + Sync + 'static,
 {
-    pub fn new(value: T, port: InnerViewPort<dyn SingletonView<Item = T>>) -> Self {
+    pub fn with_port(value: T, port: InnerViewPort<dyn SingletonView<Item = T>>) -> Self {
         let value = Arc::new(RwLock::new(value));
         port.set_view(Some(Arc::new(SingletonBufferView(value.clone()))));
 
         SingletonBuffer {
             value,
-            cast: port.get_broadcast(),
+            port
         }
     }
 
+    pub fn new(value: T) -> Self {
+        SingletonBuffer::with_port(value, ViewPort::new().into_inner())
+    }
+
+    pub fn get_port(&self) -> OuterViewPort<dyn SingletonView<Item = T>> {
+        self.port.0.outer()
+    }
+    
     pub fn get(&self) -> T {
         self.value.read().unwrap().clone()
     }
@@ -72,7 +80,7 @@ where
         let mut v = self.value.write().unwrap();
         *v = new_value;
         drop(v);
-        self.cast.notify(&());
+        self.port.notify(&());
     }
 }
 
diff --git a/nested/src/terminal/ansi_parser.rs b/nested/src/terminal/ansi_parser.rs
index 648a063..d7b6658 100644
--- a/nested/src/terminal/ansi_parser.rs
+++ b/nested/src/terminal/ansi_parser.rs
@@ -28,10 +28,10 @@ pub fn read_ansi_from<R: Read + Unpin>(
     let offset_port = ViewPort::<dyn SingletonView<Item = Vector2<i16>>>::new();
 
     let mut performer = PerfAtom {
-        buf: IndexBuffer::new(buf_port.inner()),
-        size: SingletonBuffer::new(max_size, size_port.inner()),
-        offset: SingletonBuffer::new(Vector2::new(0, 0), offset_port.inner()),
-        cursor: SingletonBuffer::new(Point2::new(0, 0), cursor_port.inner()),
+        buf: IndexBuffer::with_port(buf_port.inner()),
+        size: SingletonBuffer::with_port(max_size, size_port.inner()),
+        offset: SingletonBuffer::with_port(Vector2::new(0, 0), offset_port.inner()),
+        cursor: SingletonBuffer::with_port(Point2::new(0, 0), cursor_port.inner()),
         cursty: TerminalStyle::default(),
         curinv: false,
         cursav: Point2::new(0, 0),
diff --git a/nested/src/vec/buffer.rs b/nested/src/vec/buffer.rs
index 3cda4a3..2c145b2 100644
--- a/nested/src/vec/buffer.rs
+++ b/nested/src/vec/buffer.rs
@@ -1,6 +1,6 @@
 use {
     crate::{
-        core::{InnerViewPort, Observer, ObserverBroadcast, View},
+        core::{InnerViewPort, OuterViewPort, Observer, ObserverBroadcast, View, ViewPort},
         vec::VecDiff,
     },
     std::sync::RwLock,
@@ -27,7 +27,7 @@ where
     T: Clone + Send + Sync + 'static,
 {
     data: Arc<RwLock<Vec<T>>>,
-    cast: Arc<RwLock<ObserverBroadcast<RwLock<Vec<T>>>>>,
+    port: InnerViewPort<RwLock<Vec<T>>>
 }
 
 impl<T> VecBuffer<T>
@@ -35,23 +35,31 @@ where
     T: Clone + Send + Sync + 'static,
 {
     pub fn with_data(data: Vec<T>, port: InnerViewPort<RwLock<Vec<T>>>) -> Self {
-        let mut b = VecBuffer::new(port);
-        for x in data.into_iter() {
-            b.push(x);
-        }
-
-        b
-    }
-
-    pub fn new(port: InnerViewPort<RwLock<Vec<T>>>) -> Self {
-        let data = Arc::new(RwLock::new(Vec::new()));
+        let data = Arc::new(RwLock::new(data));
         port.set_view(Some(data.clone()));
+
+        for x in data.read().unwrap().iter().cloned() {
+            port.notify(&VecDiff::Push(x));
+        }
+            
         VecBuffer {
             data,
-            cast: port.get_broadcast(),
+            port
         }
     }
 
+    pub fn with_port(port: InnerViewPort<RwLock<Vec<T>>>) -> Self {
+        VecBuffer::with_data(vec![], port)
+    }
+
+    pub fn new() -> Self {
+        VecBuffer::with_port(ViewPort::new().into_inner())
+    }
+    
+    pub fn get_port(&self) -> OuterViewPort<RwLock<Vec<T>>> {
+        self.port.0.outer()
+    }
+
     pub fn apply_diff(&mut self, diff: VecDiff<T>) {
         let mut data = self.data.write().unwrap();
         match &diff {
@@ -73,7 +81,7 @@ where
         }
         drop(data);
 
-        self.cast.notify(&diff);
+        self.port.notify(&diff);
     }
 
     pub fn len(&self) -> usize {