diff --git a/Images/ReduceTwistRMF.png b/Images/ReduceTwistRMF.png
new file mode 100644
index 0000000..6ff4f4c
Binary files /dev/null and b/Images/ReduceTwistRMF.png differ
diff --git a/ReduceTwist.lua b/ReduceTwist.lua
index 8fdf344..17e4c12 100644
--- a/ReduceTwist.lua
+++ b/ReduceTwist.lua
@@ -1,8 +1,17 @@
--- ReduceTwist.lua by Egalware s.r.l. 2026/04/21
+-- ReduceTwistRMF.lua by Egalware s.r.l. 2026/04/21
 
 require( 'EgtBase')
 _ENV = EgtProtectGlobal()
-EgtEnableDebug( false)
+EgtEnableDebug( true)
+
+local nType = ...
+tbTypes = {
+   STD = 0,  -- standard
+   RMF = 1   -- con rotation minimizing frame
+}
+if not nType then
+   nType = tbTypes.STD
+end
 
 -- Carico le costanti di Trimming
 EgtAddToPackagePath( EgtGetSourceDir() .. '?.lua')
@@ -100,7 +109,7 @@ EgtSetColor(vSyncSel[1], EDIT_SURF_SYNC_COLOR)
 EgtSetColor(vSyncSel[2], EDIT_SURF_SYNC_COLOR)
 
 
-local nNewSurfId = EgtRegolarizeSurfaceLocally( nEditSurfLayer, nSurf,vSyncSel[1],vSyncSel[2],dLinTol)
+local nNewSurfId = EgtRegolarizeSurfaceLocally( nEditSurfLayer, nSurf,vSyncSel[1],vSyncSel[2],dLinTol, nType)
 
 if nNewSurfId == nil or nNewSurfId == GDB_ID.NULL then
    EgtOutBox( ERROR_REDUCE_TWIST .. 'Failed Reduction of twist', 'Error', 'ERROR', 'OK')
diff --git a/ReduceTwistRMF.lua b/ReduceTwistRMF.lua
new file mode 100644
index 0000000..c23eef0
--- /dev/null
+++ b/ReduceTwistRMF.lua
@@ -0,0 +1,3 @@
+-- ReduceTwist.lua by Egalware s.r.l. 2026/04/21
+
+assert(loadfile( "C:\\EgtData\\trimming\\ReduceTwist.lua"))(1)
\ No newline at end of file
diff --git a/Trimming.ini b/Trimming.ini
index 75a69a0..fae2abd 100644
--- a/Trimming.ini
+++ b/Trimming.ini
@@ -27,7 +27,8 @@ Button18=CalcBezier.lua,Images\BezierSurf.png,Get Surf
 Button19=ResetBezierSurf.lua,Images\ResetBezierSurf.png,<-- Undo
 Button20=Separator
 Button21=ReduceTwist.lua,Images\ReduceTwist.png,Reduce Twist
-Button22=ConfirmSurfChange.lua,Images\ConfirmSurfChange.png, Confirm Surf Change
-Button23=ResetSurfChange.lua,Images\ResetSurfChange.png, Reset Surf Change
-Button24=Separator
-Button25=Settings.lua,Images\Settings.png,Settings
\ No newline at end of file
+Button22=ReduceTwistRMF.lua,Images\ReduceTwistRMF.png,Reduce Twist with RMF
+Button23=ConfirmSurfChange.lua,Images\ConfirmSurfChange.png, Confirm Surf Change
+Button24=ResetSurfChange.lua,Images\ResetSurfChange.png, Reset Surf Change
+Button25=Separator
+Button26=Settings.lua,Images\Settings.png,Settings
\ No newline at end of file