Add alt-click to the scan button to nuke the waypoints from the world map and mini-map. Also make it so that you only have alt or shift down or no modifiers. ie: ctrl-click = do nothing.

diff --git a/ARLFrame.lua b/ARLFrame.lua
index dfc1592..3d2daac 100644
--- a/ARLFrame.lua
+++ b/ARLFrame.lua
@@ -46,6 +46,10 @@ local GetNumSkillLines = GetNumSkillLines
 local ExpandSkillHeader = ExpandSkillHeader
 local CollapseSkillHeader = CollapseSkillHeader

+local IsShiftKeyDown = IsShiftKeyDown
+local IsAltKeyDown = IsAltKeyDown
+local IsControlKeyDown = IsControlKeyDown
+
 -- Fallback in case the user doesn't have LSM-3.0 installed
 if (not LibStub:GetLibrary("LibSharedMedia-3.0", true)) then

@@ -329,19 +333,23 @@ do

 	local iconlist = {}

-	-- Description:
-	-- Expected result:
-	-- Input:
-	-- Output:
+	-- Description: Clears all the icons from the map.
+	-- Expected result: All icons are removed from the world map and the mini-map
+	-- Input: None
+	-- Output: All icons are removed.

 	function addon:ClearMap()

-		for i in pairs(iconlist) do
-			TomTom:RemoveWaypoint(i)
+		-- Make sure we have TomTom installed
+		if (TomTom) then
+			-- Remove all the waypoints from TomTom
+			for i in pairs(iconlist) do
+				TomTom:RemoveWaypoint(i)
+			end
+			-- Nuke our own internal table
+			table.wipe(iconlist)
 		end

-		table.wipe(iconlist)
-
 	end

 	local function CheckMapDisplay(v, filters)
@@ -361,10 +369,10 @@ do

 	end

-	-- Description:
-	-- Expected result:
-	-- Input:
-	-- Output:
+	-- Description: Adds mini-map and world map icons with tomtom.
+	-- Expected result: Icons are added to the world map and mini-map.
+	-- Input: An optional recipe ID
+	-- Output: Points are added to the maps

 	function addon:SetupMap(singlerecipe)

@@ -394,7 +402,7 @@ do

 			local maplist = {}

-			-- We're only getting a singl recipe, not a bunch
+			-- We're only getting a single recipe, not a bunch
 			if (singlerecipe) then
 				-- loop through acquire methods, display each
 				for k, v in pairs(recipeDB[singlerecipe]["Acquire"]) do
@@ -1279,10 +1287,10 @@ local function ReDisplay()

 end

--- Description:
--- Expected result:
--- Input:
--- Output:
+-- Description: Creates the scan button for ARL.
+-- Expected result: Scan button is created with all functions associated with it.
+-- Input: None.
+-- Output: Button is created and hidden.

 function addon:CreateScanButton()

@@ -2086,20 +2094,21 @@ function addon:CreateExpCB(bName, bTex, panelIndex)

 end

--- Description:
--- Expected result:
--- Input:
--- Output:
-
 do

 	local currentProfession = nil

+	-- Description: Provides logic for when you are clicking the scan button.
+	-- Expected result: Does appropiate task depending on what button has been clicked and the current state.
+	-- Input: None.
+	-- Output: Frame is toggled, etc depending on state.
+
 	function addon:ToggleFrame()

 		-- What profession is opened?
 		local cprof = GetTradeSkillLine()

+		-- The frame is visible
 		if (addon.Frame and addon.Frame:IsVisible()) then
 			-- If we have the same profession open, then we close the scanned window
 			if (currentProfession == cprof) then
@@ -2110,13 +2119,17 @@ do
 				self:SetupMap()
 				currentProfession = cprof
 			end
+		-- Frame is hidden
 		else
 			currentProfession = cprof
-			-- If we click the scan button with the shift key down, we do a text dump
-			if (IsShiftKeyDown()) then
+			-- Shift only (Text dump)
+			if (IsShiftKeyDown() and not IsAltKeyDown() and not IsControlKeyDown()) then
 				self:AckisRecipeList_Command(true)
-				self:SetupMap()
-			else
+			-- Alt only (Wipe icons from map)
+			elseif (not IsShiftKeyDown() and IsAltKeyDown() and not IsControlKeyDown()) then
+				self:ClearMap()
+			-- No modification
+			elseif (not IsShiftKeyDown() and not IsAltKeyDown() and not IsControlKeyDown()) then
 				self:AckisRecipeList_Command(false)
 				self:SetupMap()
 			end
diff --git a/Locals/ARLLocals-enUS.lua b/Locals/ARLLocals-enUS.lua
index be0ccc4..9595b88 100644
--- a/Locals/ARLLocals-enUS.lua
+++ b/Locals/ARLLocals-enUS.lua
@@ -52,7 +52,9 @@ L["Documentation"]			= true
 -- Config UI Elements and their associated descriptions
 L["MAIN_OPTIONS_DESC"]		= "Main configuration options"
 L["Scan"]					= true
-L["SCAN_RECIPES_DESC"]		= "Scans an open tradeskill for missing recipes.  Press shift to generate a text dump."
+L["SCAN_RECIPES_DESC"]		= [["Scans an open tradeskill for missing recipes.
+Shift-click to generate a text dump.
+Alt-click to remove all waypoints from the mini-map and world map."]]
 L["Text Dump"]				= true
 L["TEXT_DUMP_DESC"]			= "Displays all recipes in a comma separated value format which can be copied and pasted into another client."
 L["View Exclusion List"]	= true
@@ -323,7 +325,7 @@ L["RECIPE_EXCLUDED"]	= "Recipe is in Exclusion list"
 L["Required Skill"]		= true

 -- Popup Strings
-L["NOTSCANNED"]		= "You have not yet scanned this profession. Please open this profession and click on Scan Skills."
+L["NOTSCANNED"]		= "You have not yet scanned this profession. Please open this profession and click on Scan."
 L["ALL_FILTERED"]	= "Although you have already scanned this profession, your filters are currently preventing any recipes from being displayed. Please change your filters and try again."
 L["ARL_ALLKNOWN"]	= "You know all the recipes for this profession."
 L["ARL_ALLEXCLUDED"] = "Although you have already scanned this profession, your exclusions are currently preventing any recipes from being displayed. Please change your exclusions and try again."