fixes

system/fluents.py

@@ -80,6 +80,8 @@ class FluentApp:
         self.init_gui()
 
     def change_plot(self, plot):
+        # add current selection to new plot
+        plot.selection_changed(self.project.get_selection())
         pt = self.widget_tree.get_widget('main_view')
         pt.insert_view(plot)