diff --git a/nested/src/commander.rs b/nested/src/commander.rs
index 88c3065..fdbeaee 100644
--- a/nested/src/commander.rs
+++ b/nested/src/commander.rs
@@ -11,34 +11,7 @@ use crate::{
     tree::{nav::TreeNavResult}
 };
 
-//use r3vi::view::singleton::*;
-
 pub trait ObjCommander {
     fn send_cmd_obj(&mut self, cmd_obj: Arc<RwLock<ReprTree>>) -> TreeNavResult;
 }
-/*
-//impl<Cmd: 'static, T: Commander<Cmd>> ObjCommander for T {
-impl<C: Commander> ObjCommander for C
-where C::Cmd: 'static
-{
-    fn send_cmd_obj(&mut self, _cmd_obj: Arc<RwLock<ReprTree>>) -> TreeNavResult{
-        /*
-        self.send_cmd(
-            &cmd_obj.read().unwrap()
-                .get_port::<dyn SingletonView<Item = C::Cmd>>().unwrap()
-                .get_view().unwrap()
-                .get()
-    );
-        */
-    }
-}
 
-impl<T: Clone + Send + Sync> Commander for r3vi::buffer::vec::VecBuffer<T> {
-    type Cmd = r3vi::buffer::vec::VecDiff<T>;
-
-    fn send_cmd(&mut self, cmd: &Self::Cmd) -> TreeNavResult {
-        self.apply_diff(cmd.clone());
-        TreeNavResult::
-    }
-}
-*/