diff --git a/snub/gui/icons/x.png b/snub/gui/icons/x.png
new file mode 100644
index 0000000..9f527b7
Binary files /dev/null and b/snub/gui/icons/x.png differ
diff --git a/snub/gui/stacks/panel.py b/snub/gui/stacks/panel.py
index 202787d..84548b1 100644
--- a/snub/gui/stacks/panel.py
+++ b/snub/gui/stacks/panel.py
@@ -27,6 +27,9 @@ def __init__(self, config, selected_intervals):
             panel = ROIPanel(config, **props)
             self.widgets.append(panel)
 
+        for w in self.widgets:
+            w.closed.connect(self.widget_closed)
+
         self.initUI()
 
     def initUI(self):
@@ -60,3 +63,7 @@ def change_layout_mode(self, layout_mode):
             {"columns": Qt.Vertical, "rows": Qt.Horizontal}[layout_mode]
         )
         super().change_layout_mode(layout_mode)
+
+    def widget_closed(self):
+        if not any([w.isVisible() for w in self.widgets]):
+            self.hide()
diff --git a/snub/gui/stacks/track.py b/snub/gui/stacks/track.py
index bc3fc79..271c521 100644
--- a/snub/gui/stacks/track.py
+++ b/snub/gui/stacks/track.py
@@ -158,7 +158,6 @@ def update_current_range(self, new_range=None):
             child.update_current_range(self.current_range)
 
     def update_current_time(self, t):
-        pass
         for w in self.widgets + self.overlays:
             w.update_current_time(t)
         self.current_time_marker.set_timepoint(t)
diff --git a/snub/gui/utils/widgets.py b/snub/gui/utils/widgets.py
index 2b8af34..717dfab 100644
--- a/snub/gui/utils/widgets.py
+++ b/snub/gui/utils/widgets.py
@@ -42,6 +42,8 @@ def accept_range(self):
 
 
 class HeaderMixin:
+    closed = pyqtSignal()
+
     def initUI(
         self,
         name="",
@@ -59,6 +61,8 @@ def initUI(
         self.header_height = header_height
         self.toggle_button = QPushButton()
         self.toggle_button.clicked.connect(self.toggle_visiblity)
+        self.close_button = QPushButton()
+        self.close_button.clicked.connect(self.hide_widget)
 
         self.title = VerticalLabel(name, orientation="horizontal")
         self.header = QWidget(objectName="trackGroup_header")
@@ -67,6 +71,7 @@ def initUI(
         self.header_layout.addWidget(self.title)
         self.header_layout.addStretch(0)
         self.header_layout.addWidget(self.toggle_button)
+        self.header_layout.addWidget(self.close_button)
         self.layout = QVBoxLayout(self)
         self.layout.setContentsMargins(0, 0, 0, 0)
         self.layout.setSpacing(0)
@@ -86,8 +91,17 @@ def initUI(
                 )
             )
         )
+        self.x_icon = QIcon(
+            QPixmap(
+                os.path.join(
+                    os.path.dirname(os.path.realpath(__file__)), "../icons", "x.png"
+                )
+            )
+        )
         self.toggle_button.setIcon(self.plus_icon)
         self.toggle_button.setIconSize(QSize(12, 12))
+        self.close_button.setIcon(self.x_icon)
+        self.close_button.setIconSize(QSize(12, 12))
 
         self.setStyleSheet(
             "QWidget#trackGroup_header { background-color: rgb(30,30,30); }"
@@ -105,6 +119,10 @@ def toggle_visiblity(self, *args):
             self.is_visible = True
         self.update_layout()
 
+    def hide_widget(self):
+        self.hide()
+        self.closed.emit()
+
     def set_header_orientation(self, orientation):
         self.setMaximumSize(10000, 10000)
         self.setMinimumSize(0, 0)