diff --git a/fixtracks/widgets/tracks.py b/fixtracks/widgets/tracks.py
index 23b83be..045b4aa 100644
--- a/fixtracks/widgets/tracks.py
+++ b/fixtracks/widgets/tracks.py
@@ -306,10 +306,6 @@ class FixTracks(QWidget):
         self._reader = None
         self._image = None
         self._data = DataController()
-        self._unassignedmodel = None
-        self._leftmodel = None
-        self._rightmodel = None
-        self._proxymodel = None
         self._brushes = {"assigned_left": QBrush(QColor.fromString("orange")),
                          "assigned_right": QBrush(QColor.fromString("green")),
                          "unassigned": QBrush(QColor.fromString("red"))
@@ -340,48 +336,7 @@ class FixTracks(QWidget):
         self._controls_widget.assignTwo.connect(self.on_assignTwo)
         self._controls_widget.assignOther.connect(self.on_assignOther)
         self._controls_widget.fwd.connect(self.on_forward)
-        self._controls_widget.back.connect(self.on_back)
-
-        self._trackone_table = QTableView()
-        font = QFont()
-        font.setBold(True)
-        font.setPointSize(8)
-        self._trackone_table.setFont(font)
-        assign1 = QPushButton("<<")
-        assign1.clicked.connect(self.on_assignOne)
-        assign2 = QPushButton(">>")
-        assign2.clicked.connect(self.on_assignTwo)
-        self._unassigned_table = QTableView()
-        self._unassigned_table.setFont(font)
-        self._unassigned_table.setSelectionMode(QTableView.SelectionMode.ExtendedSelection)
-        self._unassigned_table.setSelectionBehavior(QTableView.SelectionBehavior.SelectRows)
-        self._tracktwo_table = QTableView()
-        self._tracktwo_table.setFont(font)
-
-        trackone_label = QLabel("Track 1")
-        trackone_label.setStyleSheet("QLabel { color : orange; }")
-        track1_box = QVBoxLayout()
-        track1_box.addWidget(trackone_label)
-        track1_box.addWidget(self._trackone_table)
-
-        tracktwo_label = QLabel("Track 2")
-        tracktwo_label.setStyleSheet("QLabel { color : green; }")
-        tracktwo_box = QVBoxLayout()
-        tracktwo_box.addWidget(tracktwo_label)
-        tracktwo_box.addWidget(self._tracktwo_table)
-
-        trackother_label = QLabel("Unassigned")
-        trackother_label.setStyleSheet("QLabel { color : red; }")
-        trackother_box = QVBoxLayout()
-        trackother_box.addWidget(trackother_label)
-        trackother_box.addWidget(self._unassigned_table)
-
-        # tablebox = QHBoxLayout()
-        # tablebox.addLayout(track1_box)
-        # tablebox.addWidget(assign1)
-        # tablebox.addLayout(trackother_box)
-        # tablebox.addWidget(assign2)
-        # tablebox.addLayout(tracktwo_box)
+        self._controls_widget.back.connect(self.on_backward)
 
         self._saveBtn = QPushButton("Save")
         self._saveBtn.setShortcut("Ctrl+S")
@@ -411,12 +366,10 @@ class FixTracks(QWidget):
         btnBox.addItem(QSpacerItem(100, 10, QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Fixed))
         btnBox.addWidget(self._tasklabel)
         btnBox.addWidget(self._progress_bar)
-        # btnBox.addWidget(self._openBtn)
         btnBox.addWidget(self._saveBtn)
 
         vbox = QVBoxLayout()
         vbox.addLayout(timelinebox)
-        # vbox.addLayout(tablebox)
         vbox.addWidget(self._controls_widget, stretch=1, alignment=Qt.AlignmentFlag.AlignCenter)
         vbox.addLayout(btnBox)
         container = QWidget()
@@ -578,7 +531,7 @@ class FixTracks(QWidget):
     def on_forward(self, stepsize):
         logging.debug("Tracks: recieve forward command with stepsize: %.2f", stepsize)
 
-    def on_back(self, stepsize):
+    def on_backward(self, stepsize):
         logging.debug("Tracks: recieve backward command with stepsize: %.2f", stepsize)
 
 def main():