diff --git a/Video/VideoAutoFlipper/VP_Presets/AspectratioFixer.eel b/Video/VideoAutoFlipper/VP_Presets/AspectratioFixer.eel
index d02fc9e..899d44d 100644
--- a/Video/VideoAutoFlipper/VP_Presets/AspectratioFixer.eel
+++ b/Video/VideoAutoFlipper/VP_Presets/AspectratioFixer.eel
@@ -1,4 +1,4 @@
-// Aspectratio fixer
+// VAF: Aspectratio fixer
 //@param1:p_bg_clr 'green/blue bg' 1 0 1 0.1 1
 
 gfx_b = p_bg_clr;
diff --git a/Video/VideoAutoFlipper/VP_Presets/BoxCrop.eel b/Video/VideoAutoFlipper/VP_Presets/BoxCrop.eel
index 8a06384..6dc4ed6 100644
--- a/Video/VideoAutoFlipper/VP_Presets/BoxCrop.eel
+++ b/Video/VideoAutoFlipper/VP_Presets/BoxCrop.eel
@@ -1,4 +1,4 @@
-//Box Crop
+// VAF: Box Crop
 //By Zly
 
 //@param<idx>[:varname] 'name' [defval minval maxval centval step]
diff --git a/Video/VideoAutoFlipper/VP_Presets/Chroma.eel b/Video/VideoAutoFlipper/VP_Presets/Chroma.eel
index 03b4271..70f9ae5 100644
--- a/Video/VideoAutoFlipper/VP_Presets/Chroma.eel
+++ b/Video/VideoAutoFlipper/VP_Presets/Chroma.eel
@@ -1,4 +1,4 @@
-// Chroma-key (RGB version)
+// VAF: Chroma-key
 //@param1:mode '0=green,1=blue' 1 0 1 0.5 1
 //@param2:p primary 1.01 0 6 3 .01
 //@param3:rej rejection 3 0 6 3 .01
diff --git a/Video/VideoAutoFlipper/VP_Presets/Cropper.eel b/Video/VideoAutoFlipper/VP_Presets/Cropper.eel
index bdab298..e149e55 100644
--- a/Video/VideoAutoFlipper/VP_Presets/Cropper.eel
+++ b/Video/VideoAutoFlipper/VP_Presets/Cropper.eel
@@ -1,4 +1,4 @@
-//Cropper
+// VAF: Cropper
 //By Zly
 
 //@param1:left_cut  "Left" 0 0 0.5 0.25 0.01
diff --git a/Video/VideoAutoFlipper/VP_Presets/Flipper.eel b/Video/VideoAutoFlipper/VP_Presets/Flipper.eel
index d2fd7e7..dd6b9ab 100644
--- a/Video/VideoAutoFlipper/VP_Presets/Flipper.eel
+++ b/Video/VideoAutoFlipper/VP_Presets/Flipper.eel
@@ -1,4 +1,4 @@
-// Flipper
+// VAF: Flipper
 //@param<idx>[:varname] 'name' [defval minval maxval centval step]
 //@param1:h_flip 'Horiz flip' 0 0 1 0.5 1
 //@param2:v_flip 'Vert flip' 0 0 1 0.5 1
diff --git a/Video/VideoAutoFlipper/VP_Presets/Null.eel b/Video/VideoAutoFlipper/VP_Presets/Null.eel
index 08c4ca6..1a4c2a6 100644
--- a/Video/VideoAutoFlipper/VP_Presets/Null.eel
+++ b/Video/VideoAutoFlipper/VP_Presets/Null.eel
@@ -1,3 +1,3 @@
-// Null
+// VAF: Null
 //@param1:null "null" 0 -360 360 0 0.001
 
diff --git a/Video/VideoAutoFlipper/VP_Presets/Opacity.eel b/Video/VideoAutoFlipper/VP_Presets/Opacity.eel
index 9c83592..d35e3ee 100644
--- a/Video/VideoAutoFlipper/VP_Presets/Opacity.eel
+++ b/Video/VideoAutoFlipper/VP_Presets/Opacity.eel
@@ -1,4 +1,4 @@
-//Opacity
+// VAF: Opacity
 //@param1:opacity 'Opacity' 1
 
 bg_img = input_ismaster() ? -2 : input_track(0);
diff --git a/Video/VideoAutoFlipper/VP_Presets/PositionOffset.eel b/Video/VideoAutoFlipper/VP_Presets/PositionOffset.eel
index 184b312..482c3dc 100644
--- a/Video/VideoAutoFlipper/VP_Presets/PositionOffset.eel
+++ b/Video/VideoAutoFlipper/VP_Presets/PositionOffset.eel
@@ -1,4 +1,4 @@
-//Position Offset
+// VAF: Position Offset
 //@param<idx>[:varname] 'name' [defval minval maxval centval step]
 //@param1:p_x_offs 'X offset' 0 -1 1 0 0.001
 //@param2:p_y_offs 'Y offset' 0 -1 1 0 0.001
diff --git a/Video/VideoAutoFlipper/VP_Presets/Pre-Compose.eel b/Video/VideoAutoFlipper/VP_Presets/Pre-Compose.eel
index 7cd9622..c6276ca 100644
--- a/Video/VideoAutoFlipper/VP_Presets/Pre-Compose.eel
+++ b/Video/VideoAutoFlipper/VP_Presets/Pre-Compose.eel
@@ -1,2 +1,2 @@
-// Pre-Compose
+// VAF: Pre-Compose
 gfx_blit(0, 0);
\ No newline at end of file
diff --git a/Video/VideoAutoFlipper/VP_Presets/Rotate.eel b/Video/VideoAutoFlipper/VP_Presets/Rotate.eel
index 33822c9..ad8d3a7 100644
--- a/Video/VideoAutoFlipper/VP_Presets/Rotate.eel
+++ b/Video/VideoAutoFlipper/VP_Presets/Rotate.eel
@@ -1,4 +1,4 @@
-//Rotate
+// VAF: Rotate
 //@param1:rotate 'rotate' 0 -360 360 0 1
 //@param2:filter 'filter' 0 0 1 0.5 1
 
diff --git a/Video/VideoAutoFlipper/VP_Presets/Scale.eel b/Video/VideoAutoFlipper/VP_Presets/Scale.eel
index 156978a..ab27ed0 100644
--- a/Video/VideoAutoFlipper/VP_Presets/Scale.eel
+++ b/Video/VideoAutoFlipper/VP_Presets/Scale.eel
@@ -1,4 +1,4 @@
-//Scale
+// VAF: Scale
 //@param<idx>[:varname] 'name' [defval minval maxval centval step]
 //@param1:p_scale 'Scale' 1 0.01 2 1
 //@param2:p_scale_x 'X Scale' 1 0.01 2 1
diff --git a/Video/VideoAutoFlipper/VP_Presets/SolidColorFill.eel b/Video/VideoAutoFlipper/VP_Presets/SolidColorFill.eel
index ba2aff1..223af3e 100644
--- a/Video/VideoAutoFlipper/VP_Presets/SolidColorFill.eel
+++ b/Video/VideoAutoFlipper/VP_Presets/SolidColorFill.eel
@@ -1,4 +1,4 @@
-// Solid Color Fill
+// VAF: Solid Color Fill
 //@param1:p_r "R" 1 0 1 0.5 0.05
 //@param2:p_g "G" 0 0 1 0.5 0.05
 //@param3:p_b "B" 0 0 1 0.5 0.05
diff --git a/Video/VideoAutoFlipper/Zly_VideoAutoFlipper.lua b/Video/VideoAutoFlipper/Zly_VideoAutoFlipper.lua
index 149bdcc..3565d71 100644
--- a/Video/VideoAutoFlipper/Zly_VideoAutoFlipper.lua
+++ b/Video/VideoAutoFlipper/Zly_VideoAutoFlipper.lua
@@ -680,9 +680,10 @@ local VAF = {
 
 
 	AddVFX = function(self, track, name, presset_name, force_add)
+		local fx_chroma = reaper.TrackFX_GetByName(track, "VAF: Chroma-key", false)
 		local fx = reaper.TrackFX_GetByName(track, name, false)
 		if fx == -1 or force_add then
-			fx = reaper.TrackFX_AddByName(track, "Video processor", 0, 1)
+			fx = reaper.TrackFX_AddByName(track, "Video processor", 0, fx_chroma ~= -1 and -1000-fx_chroma or 1)
 			reaper.TrackFX_SetNamedConfigParm(track, fx, "renamed_name", name)
 			reaper.TrackFX_SetNamedConfigParm(track, fx, "VIDEO_CODE", self.VP_Presets[presset_name])
 		end
@@ -1282,7 +1283,7 @@ end
 
 function GUI:TAB_FAQ()
 	local fla = 0
-		| reaper.ImGui_WindowFlags_NoResize()
+		| ImGui.WindowFlags_NoResize()
 		| ImGui.WindowFlags_AlwaysVerticalScrollbar()
 	if ImGui.BeginChild(self.ctx, "AI", 0, 0, true, fla) then
 		local max_line_len = 36