diff --git a/changelog.md b/changelog.md
index c68b2ef..ca0bc91 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,9 @@
 # Changelog
 
+v1.14.6:
+
+- Add ability for buff/debuff watchers to only display when the specified buff/debuff is missing. This also adds the ability to require that the given unit exists. So if you had Unit set to Target, Display mode set to Missing, and Only if unit exists checked, you'd show the bar if you have a target and they don't have the given buff/debuff.
+
 v1.14.5:
 
 - Fix castbar flashing. There are controls on the player castbar module for flashing when a spell succeeds or fails, and separate controls for flashing when an instant cast completes. Those were broken, but now work again.
diff --git a/modules/CustomBar.lua b/modules/CustomBar.lua
index 98642ce..a3203db 100644
--- a/modules/CustomBar.lua
+++ b/modules/CustomBar.lua
@@ -10,6 +10,7 @@ local buffOrDebuff = {"buff", "debuff"}
 local validBuffTimers = {"none", "seconds", "minutes:seconds", "minutes"}
 local AuraIconWidth = 20
 local AuraIconHeight = 20
+local displayModes = {NORMAL = L["When present"], ALWAYS = L["Always"], WHEN_TARGETING = L["Always, when targeting"], MISSING = L["When missing"]}
 
 IceCustomBar.prototype.auraDuration = -1
 IceCustomBar.prototype.auraEndTime = -1
@@ -28,6 +29,16 @@ end
 function IceCustomBar.prototype:Enable(core)
 	IceCustomBar.super.prototype.Enable(self, core)
 
+	-- fix up for new display mode setting
+	if self.moduleSettings.displayWhenTargeting then
+		self.moduleSettings.displayMode = displayModes.WHEN_TARGETING
+		self.moduleSettings.displayWhenTargeting = nil
+	end
+	if self.moduleSettings.displayWhenEmpty then
+		self.moduleSettings.displayMode = displayModes.ALWAYS
+		self.moduleSettings.displayWhenEmpty = nil
+	end
+
 	if IceHUD.IceCore:ShouldUseDogTags() then
 		DogTag = LibStub("LibDogTag-3.0", true)
 		if DogTag then
@@ -149,8 +160,7 @@ function IceCustomBar.prototype:GetDefaultSettings()
 	settings["buffOrDebuff"] = "buff"
 	settings["barColor"] = {r=1, g=0, b=0, a=1}
 	settings["trackOnlyMine"] = true
-	settings["displayWhenEmpty"] = false
-	settings["displayWhenTargeting"] = false
+	settings["displayMode"] = displayModes.NORMAL
 	settings["hideAnimationSettings"] = true
 	settings["buffTimerDisplay"] = "minutes"
 	settings["maxDuration"] = 0
@@ -431,38 +441,39 @@ function IceCustomBar.prototype:GetOptions()
 		order = 30.8,
 	}
 
-	opts["displayWhenEmpty"] = {
-		type = 'toggle',
-		name = L["Display when empty"],
-		desc = L["Whether or not to display this bar even if the buff/debuff specified is not present."],
-		get = function()
-			return self.moduleSettings.displayWhenEmpty
+	opts["displayMode"] = {
+		type = 'select',
+		values = displayModes,
+		name = L["Display mode"],
+		desc = L["When to show the bar"],
+		get = function(info)
+			return IceHUD:GetSelectValue(info, self.moduleSettings.displayMode)
 		end,
 		set = function(info, v)
-			self.moduleSettings.displayWhenEmpty = v
+			self.moduleSettings.displayMode = info.option.values[v]
 			self:UpdateCustomBar()
 		end,
 		disabled = function()
 			return not self.moduleSettings.enabled
 		end,
-		order = 30.9
+		order = 30.9,
 	}
 
-	opts["displayWhenTargeting"] = {
+	opts["displayWhenUnitExists"] = {
 		type = 'toggle',
-		name = L["Display when targeting"],
-		desc = L["Whether to display this bar when you target a unit, even if the buff/debuff specified is not present."],
-		get = function()
-			return self.moduleSettings.displayWhenTargeting
+		name = L["Only if unit exists"],
+		desc = L["If checked, the bar will only be displayed (according to the 'Display mode' rules) when the Unit to Track exists (e.g. if set to Target and you're targeting something)."],
+		get = function(info)
+			return self.moduleSettings.displayWhenUnitExists
 		end,
 		set = function(info, v)
-			self.moduleSettings.displayWhenTargeting = v
+			self.moduleSettings.displayWhenUnitExists = v
 			self:UpdateCustomBar()
 		end,
 		disabled = function()
 			return not self.moduleSettings.enabled
 		end,
-		order = 30.91
+		order = 30.91,
 	}
 
 	opts["buffTimerDisplay"] = {
@@ -866,9 +877,16 @@ function IceCustomBar.prototype:Show(bShouldShow, bForceHide)
 		return
 	end
 
-	if self.moduleSettings.displayWhenTargeting and self.target then
+	if self.moduleSettings.displayWhenUnitExists and not UnitExists(self.unit) then
+		IceCustomBar.super.prototype.Show(self, false)
+		return
+	end
+
+	if self.moduleSettings.displayMode == displayModes.MISSING then
+		IceCustomBar.super.prototype.Show(self, not bShouldShow)
+	elseif self.moduleSettings.displayMode == displayModes.WHEN_TARGETING and self.target then
 		IceCustomBar.super.prototype.Show(self, true)
-	elseif self.moduleSettings.displayWhenEmpty then
+	elseif self.moduleSettings.displayMode == displayModes.ALWAYS then
 		if not self.bIsVisible then
 			IceCustomBar.super.prototype.Show(self, true)
 		end
diff --git a/this_version.md b/this_version.md
index 515062c..aeb4c70 100644
--- a/this_version.md
+++ b/this_version.md
@@ -1,5 +1,9 @@
 # Changelog
 
+v1.14.6:
+
+- Add ability for buff/debuff watchers to only display when the specified buff/debuff is missing. This also adds the ability to require that the given unit exists. So if you had Unit set to Target, Display mode set to Missing, and Only if unit exists checked, you'd show the bar if you have a target and they don't have the given buff/debuff.
+
 v1.14.5:
 
 - Fix castbar flashing. There are controls on the player castbar module for flashing when a spell succeeds or fails, and separate controls for flashing when an instant cast completes. Those were broken, but now work again.