diff --git a/scanslicer/controller.py b/scanslicer/controller.py
new file mode 100644
index 0000000..49d648d
--- /dev/null
+++ b/scanslicer/controller.py
@@ -0,0 +1,8 @@
+from .controller_canvas_actions import ScanSlicerCanvasActionsMixin
+from .controller_detection import ScanSlicerDetectionMixin
+from .controller_image_io import ScanSlicerImageIOMixin
+from .controller_params import ScanSlicerParamsMixin
+from .controller_status import ScanSlicerStatusMixin
+
+
+# ScanSlicerControllerMixin: class definition for ScanSlicer behavior.