small fixes

operators/sequencer.py

@@ -418,7 +418,11 @@ class WM_OT_split_view(Operator):
         scn = context.scene
         video_channels = [i for i, c in enumerate(scn.sequence_editor.channels) if 'Video' in c.name]
 
-        if len(video_channels) == 2 and len(preview_areas) == 1:
+        if len(video_channels) < 2:
+            self.report({"ERROR"}, 'You need two channels to split the view')
+            return {"CANCELLED"}
+
+        if len(preview_areas) == 1:
             # Split area
             with bpy.context.temp_override(area=preview_areas[0]):
                 bpy.ops.screen.area_split(direction="VERTICAL")
@@ -427,7 +431,7 @@ class WM_OT_split_view(Operator):
             # Update areas
             preview_areas = self.get_preview_areas(context)
             
-            preview_areas[-1].spaces[0].display_channel = video_channels[-1]
+            preview_areas[-1].spaces[0].display_channel = 0 #video_channels[-1]
             preview_areas[0].spaces[0].display_channel = video_channels[-2]
 
             preview_areas[0].spaces[0].show_gizmo_navigate = False