diff --git a/Various/JWM_Change pre-roll duration value.lua b/Various/JWM_Change pre-roll duration value.lua
new file mode 100644
index 000000000..b83744aa2
--- /dev/null
+++ b/Various/JWM_Change pre-roll duration value.lua	
@@ -0,0 +1,15 @@
+-- @description Change Pre-roll duration value
+-- @author José M Muñoz (J-WalkMan)
+-- @version 1.0
+-- @metapackage
+-- @provides
+--   [main] JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 1 bar.lua
+--   [main] JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 2 bars.lua
+--   [main] JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 4 bars.lua
+--   [main] JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 8 bars.lua
+--   [main] JWM_Change pre-roll duration value/JWM_Set pre-roll duration to double the current value.lua
+--   [main] JWM_Change pre-roll duration value/JWM_Set pre-roll duration to half of the current value.lua
+-- @about
+--   Minimum value is 1 measure
+--   Maximum value is 16 measures
+
diff --git a/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 1 bar.lua b/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 1 bar.lua
new file mode 100644
index 000000000..23b13d0f1
--- /dev/null
+++ b/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 1 bar.lua	
@@ -0,0 +1,3 @@
+-- @noindex
+
+reaper.SNM_SetDoubleConfigVar("prerollmeas", 1)
diff --git a/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 2 bars.lua b/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 2 bars.lua
new file mode 100644
index 000000000..7381351a9
--- /dev/null
+++ b/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 2 bars.lua	
@@ -0,0 +1,3 @@
+-- @noindex
+
+reaper.SNM_SetDoubleConfigVar("prerollmeas", 2)
diff --git a/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 4 bars.lua b/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 4 bars.lua
new file mode 100644
index 000000000..5e74c4ccf
--- /dev/null
+++ b/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 4 bars.lua	
@@ -0,0 +1,3 @@
+-- @noindex
+
+reaper.SNM_SetDoubleConfigVar("prerollmeas", 4)
diff --git a/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 8 bars.lua b/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 8 bars.lua
new file mode 100644
index 000000000..a74fc0e56
--- /dev/null
+++ b/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to 8 bars.lua	
@@ -0,0 +1,3 @@
+-- @noindex
+
+reaper.SNM_SetDoubleConfigVar("prerollmeas", 8)
diff --git a/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to double the current value.lua b/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to double the current value.lua
new file mode 100644
index 000000000..9443cf214
--- /dev/null
+++ b/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to double the current value.lua	
@@ -0,0 +1,14 @@
+-- @noindex
+
+--Script by Mnz
+-- -1 is just to highlight the odd case where reaper can't find a preroll measure value
+-- the script makes sure the preroll can't be set to more than 16 bars
+
+prerollmeas = reaper.SNM_GetDoubleConfigVar("prerollmeas", -1)
+if prerollmeas == 0 then
+  reaper.SNM_SetDoubleConfigVar("prerollmeas", 1)
+elseif prerollmeas >= 16 then
+  reaper.SNM_SetDoubleConfigVar("prerollmeas", 16)
+else
+  reaper.SNM_SetDoubleConfigVar("prerollmeas", prerollmeas*2)
+end
diff --git a/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to half of the current value.lua b/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to half of the current value.lua
new file mode 100644
index 000000000..ca9b18990
--- /dev/null
+++ b/Various/JWM_Change pre-roll duration value/JWM_Set pre-roll duration to half of the current value.lua	
@@ -0,0 +1,12 @@
+-- @noindex
+
+--Script by Mnz
+-- -1 is just to highlight the odd case where reaper can't find a preroll measure value
+-- the script makes sure the preroll can't be set to less than 0
+
+prerollmeas = reaper.SNM_GetDoubleConfigVar("prerollmeas", -1)
+if prerollmeas <= 1 then
+  reaper.SNM_SetDoubleConfigVar("prerollmeas", 0)
+else
+  reaper.SNM_SetDoubleConfigVar("prerollmeas", prerollmeas/2)
+end