diff --git a/Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h b/Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h
index a0f53fad..c6fa56e9 100644
--- a/Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK25S-RAMBo10a-E3Dv6full.h
@@ -505,6 +505,13 @@
 #define MMU_DEBUG //print communication between MMU2 and printer on serial
 //#define MMU_HAS_CUTTER
 
+// This is experimental feature requested by our test department.
+// There is no known use for ordinary user. If enabled by this macro
+// and enabled from printer menu (not enabled by default). It cuts filament
+// every time when switching filament from gcode. MMU_HAS_CUTTER needs to be
+// defined.
+
+//#define MMU_ALWAYS_CUT
 #define MMU_IDLER_SENSOR_ATTEMPTS_NR 21 //max. number of attempts to load filament if first load failed; value for max bowden length and case when loading fails right at the beginning
 
 #endif //__CONFIGURATION_PRUSA_H
diff --git a/Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h b/Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h
index 5946bc80..24f624cd 100644
--- a/Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK25S-RAMBo13a-E3Dv6full.h
@@ -506,6 +506,13 @@
 #define MMU_DEBUG //print communication between MMU2 and printer on serial
 //#define MMU_HAS_CUTTER
 
+// This is experimental feature requested by our test department.
+// There is no known use for ordinary user. If enabled by this macro
+// and enabled from printer menu (not enabled by default). It cuts filament
+// every time when switching filament from gcode. MMU_HAS_CUTTER needs to be
+// defined.
+
+//#define MMU_ALWAYS_CUT
 #define MMU_IDLER_SENSOR_ATTEMPTS_NR 21 //max. number of attempts to load filament if first load failed; value for max bowden length and case when loading fails right at the beginning
 
 #endif //__CONFIGURATION_PRUSA_H
diff --git a/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h b/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h
index 2cf180a1..81c8788c 100644
--- a/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h
@@ -627,6 +627,14 @@
 #define MMU_HWRESET
 #define MMU_DEBUG //print communication between MMU2 and printer on serial
 //#define MMU_HAS_CUTTER
+
+// This is experimental feature requested by our test department.
+// There is no known use for ordinary user. If enabled by this macro
+// and enabled from printer menu (not enabled by default). It cuts filament
+// every time when switching filament from gcode. MMU_HAS_CUTTER needs to be
+// defined.
+
+//#define MMU_ALWAYS_CUT
 #define MMU_IDLER_SENSOR_ATTEMPTS_NR 21 //max. number of attempts to load filament if first load failed; value for max bowden length and case when loading fails right at the beginning
 
 #endif //__CONFIGURATION_PRUSA_H