diff --git a/src/calng/scenes.py b/src/calng/scenes.py
index f9669225c268576626e886fe2cbb3b32559025c2..2d714f9d2a8b1cd1eb701178429712adf3ab716d 100644
--- a/src/calng/scenes.py
+++ b/src/calng/scenes.py
@@ -561,6 +561,7 @@ class AssemblerDeviceStatus(VerticalLayout):
                         keys=[f"{device_id}.downsamplingFactor"],
                         width=7 * BASE_INC,
                         height=BASE_INC,
+                        klass="EditableComboBox",
                     ),
                     padding=0,
                 ),
@@ -574,6 +575,7 @@ class AssemblerDeviceStatus(VerticalLayout):
                         keys=[f"{device_id}.downsamplingFunction"],
                         width=7 * BASE_INC,
                         height=BASE_INC,
+                        klass="EditableComboBox",
                     ),
                     padding=0,
                 ),