diff --git a/sohstationviewer/view/plotting/plotting_widget/multi_threaded_plotting_widget.py b/sohstationviewer/view/plotting/plotting_widget/multi_threaded_plotting_widget.py
index c57e818f8ed98e8f1ef43a344d43ec97df3d0372..7b7ad46d599c829bb8ea8867dc28ffc3c441e958 100644
--- a/sohstationviewer/view/plotting/plotting_widget/multi_threaded_plotting_widget.py
+++ b/sohstationviewer/view/plotting/plotting_widget/multi_threaded_plotting_widget.py
@@ -234,8 +234,8 @@ class MultiThreadedPlottingWidget(PlottingWidget):
             channel_processor.stopped.connect(self.has_stopped)
 
     def plot_channels(
-            self, d_obj, data_set_id, start_tm, end_tm,
-            time_ticks_total, pref_order=[]):
+            self, d_obj, data_set_id, start_tm=None, end_tm=None,
+            time_ticks_total=0, pref_order=[], keep_zoom=False):
         """
         Prepare to plot waveform/SOH/mass-position data:
             + get_plotting_info: get sizing info
@@ -256,6 +256,8 @@ class MultiThreadedPlottingWidget(PlottingWidget):
         self.start_tm = start_tm
         self.end_tm = end_tm
         self.time_ticks_total = time_ticks_total
+        if not keep_zoom:
+            self.zoom_minmax_list = []
 
         if 'VST' in pref_order:
             # pref_order use original name VST to read from file.
diff --git a/sohstationviewer/view/plotting/plotting_widget/plotting_widget.py b/sohstationviewer/view/plotting/plotting_widget/plotting_widget.py
index 42f79adea2f585678aa6c1363240d754909e3df2..3681a34f9fc666bfec9f7cfecbde14e9d9e485c8 100644
--- a/sohstationviewer/view/plotting/plotting_widget/plotting_widget.py
+++ b/sohstationviewer/view/plotting/plotting_widget/plotting_widget.py
@@ -710,8 +710,13 @@ class PlottingWidget(QtWidgets.QScrollArea):
             fist time for this data set or not.
         :param is_zoom_in: if set_lim comes from zoom_in task
         """
+        from_add_remove_channels = False
         if is_zoom_in:
-            self.zoom_minmax_list.append((self.min_x, self.max_x))
+            if first_time and self.zoom_minmax_list:
+                self.min_x, self.max_x = self.zoom_minmax_list[-1]
+                from_add_remove_channels = True
+            else:
+                self.zoom_minmax_list.append((self.min_x, self.max_x))
 
         self.plotting_axes.update_timestamp_bar(self.timestamp_bar_top)
         self.plotting_axes.update_timestamp_bar(self.timestamp_bar_bottom)
@@ -732,7 +737,7 @@ class PlottingWidget(QtWidgets.QScrollArea):
                 break
 
             ax.set_xlim(self.min_x, self.max_x)
-            if not first_time:
+            if not first_time or from_add_remove_channels:
                 new_min_y = None
                 new_max_y = None
                 if hasattr(ax, 'x_top'):
diff --git a/sohstationviewer/view/select_channels_to_show_dialog.py b/sohstationviewer/view/select_channels_to_show_dialog.py
index 78ceba6a1a9a75eeeef5c8cf9650691549f8762b..082d58779b82cd6a8b0eee61a50f1d9046ad19d4 100644
--- a/sohstationviewer/view/select_channels_to_show_dialog.py
+++ b/sohstationviewer/view/select_channels_to_show_dialog.py
@@ -153,7 +153,9 @@ class SelectChanelsToShowDialog(QDialog):
             self.parent.start_tm,
             self.parent.end_tm,
             self.parent.time_ticks_total,
-            new_pref_order)
+            new_pref_order,
+            keep_zoom=True
+        )
         self.parent.draw()
 
         self.close()