diff --git a/Build/Scripting/ZDoom_DECORATE.cfg b/Build/Scripting/ZDoom_DECORATE.cfg
index 06effbda..1ae6fbac 100644
--- a/Build/Scripting/ZDoom_DECORATE.cfg
+++ b/Build/Scripting/ZDoom_DECORATE.cfg
@@ -390,7 +390,9 @@ keywords
 	random2 = "int random2[identifier](mask)\nReturns a random integer value between -mask and +mask.";
 	frandom = "float frandom[identifier](min, max)\nReturns a random floating point value between min and max.";
 	randompick = "int randompick[identifier](int, ...)\nPicks a number from the numbers placed in it.\nThis can take an unlimited amount of parameters.";
-	frandompick = "float frandompick[identifier](int, ...)\nSimilar to randompick but for float-point values.";
+	frandompick = "float frandompick[identifier](float, ...)\nPicks a number from the numbers placed in it.\nThis can take an unlimited amount of parameters.";
+	min = "float min(float or int, ...)\nGets the smallest value of all values listed.\nCan take any amount of numbers, and can solve both ints and floats.";
+	max = "float max(float or int, ...)\nGets the largest value of all values listed.\nCan take any amount of numbers, and can solve both ints and floats.";
 //State functions
 	Light = "Light(str lightname)";
 	Offset = "Offset(int x, int y)";
diff --git a/Help/gc_decoratekeys.html b/Help/gc_decoratekeys.html
index 772c7f4e..7ea42aa6 100644
--- a/Help/gc_decoratekeys.html
+++ b/Help/gc_decoratekeys.html
@@ -90,7 +90,7 @@ Actor ChexShield : ResistanceRune replaces ResistanceRune 5104
 {
   //$Category "Pickups/Chex Powerups"
   //$Sprite ARMXA0
-	//$IgnoreRenderstyle
+  //$IgnoreRenderstyle
   //$Title "Chex Shield"
   //$Color 12
   //$NotAngled
@@ -119,7 +119,7 @@ Actor ChexShield : ResistanceRune replaces ResistanceRune 5104
 
   Height 44
   Radius 26
-	RenderStyle None
+  RenderStyle None
   Inventory.PickupMessage "Picked up the energized Chex armor!"
 
   States
diff --git a/Source/Core/General/MapManager.cs b/Source/Core/General/MapManager.cs
index 689f1530..01874a84 100644
--- a/Source/Core/General/MapManager.cs
+++ b/Source/Core/General/MapManager.cs
@@ -773,7 +773,7 @@ namespace CodeImp.DoomBuilder
 
 			//mxd. Target file is read-only?
 			FileInfo info = new FileInfo(newfilepathname);
-			if(info.IsReadOnly)
+			if(info.Exists && info.IsReadOnly)
 			{
 				if(General.ShowWarningMessage("Unable to save the map: target file is read-only.\nRemove read-only flag and save the map anyway?", MessageBoxButtons.YesNo) == DialogResult.Yes)
 				{