Index: doc/filter.man.inc
===================================================================
diff -u -rd6e5661d520977831094caa5d2c8a5567567ecc3 -r2eb328e4d7f6cb4f21144efdb08c87742d0a44f5
--- doc/filter.man.inc	(.../filter.man.inc)	(revision d6e5661d520977831094caa5d2c8a5567567ecc3)
+++ doc/filter.man.inc	(.../filter.man.inc)	(revision 2eb328e4d7f6cb4f21144efdb08c87742d0a44f5)
@@ -20,8 +20,7 @@
 (see [cmd expr]). [arg expr] is evaluated when [arg obj] receives a message to determine whether the
 filter should intercept the message. Guard expressions
 allow for realizing context-dependent or conditional filter
-composition. If [arg filterSpecList] represents an empty list, any
-existing [term "filter"] will be removed from [arg obj].
+composition.
 
 [def "[arg obj] [const [vset SCOPE]] [method {filter get}]"]
 Returns the current list of methods registered as [term "filter"]s.
@@ -37,6 +36,10 @@
 throw an error if there is no matching [term "filter"], unless
 [option -nocomplain] is set.
 
+[def "[arg obj] [const [vset SCOPE]] [method {filter unset}]"]
+Removes all [term "filter"]s from [arg obj]. This is equivalent
+to passing an empty list for [arg filterSpecList] to [const [vset SCOPE]] [method {filter set}].
+
 [def "[arg obj] [const [vset SCOPE]] [method {filter guard}] [arg methodName] [arg expr]"]
 
 Registers a guard expression [arg expr] with a filter [arg methodName]
@@ -49,4 +52,4 @@
 Every [arg methodName] in a [arg spec] must resolve to an existing method in
 the scope of the [vset SCOPE]. To
 access and to manipulate the list of [term "filter"]s of [arg obj], 
-[method cget]|[method configure] [option -[vset SCOPE]-filter] can also be used.
\ No newline at end of file
+[method cget]|[method configure] [option -[vset SCOPE]-filter] can also be used.
Index: doc/mixin.man.inc
===================================================================
diff -u -rd6e5661d520977831094caa5d2c8a5567567ecc3 -r2eb328e4d7f6cb4f21144efdb08c87742d0a44f5
--- doc/mixin.man.inc	(.../mixin.man.inc)	(revision d6e5661d520977831094caa5d2c8a5567567ecc3)
+++ doc/mixin.man.inc	(.../mixin.man.inc)	(revision 2eb328e4d7f6cb4f21144efdb08c87742d0a44f5)
@@ -20,8 +20,7 @@
 [cmd expr] when [arg obj] receives a message to determine if the mixin
 is to be considered during method dispatch or not. Guard expressions
 allow for realizing context-dependent or conditional mixin
-composition. If [arg mixinSpecList] represents an empty list, any
-existing [term "mixin class"] will be removed from [arg obj].
+composition.
 
 [def "[arg obj] [const [vset SCOPE]] [method {mixin get}]"]
 Returns the current list of [term "mixin class"]es.
@@ -32,6 +31,11 @@
 [def "[arg obj] [const [vset SCOPE]] [method {mixin delete}] [option -nocomplain] [arg specPattern]"]
 Removes a [term "mixin class"] from a current list of [term "mixin class"]es of [arg obj] whose spec matches [arg specPattern]. [arg specPattern] can contain special matching chars (see [cmd "string match"]). [const [vset SCOPE]] [method "mixin delete"] will throw an error if there is no matching [term "mixin class"], unless [option -nocomplain] is set.
 
+[def "[arg obj] [const [vset SCOPE]] [method {mixin unset}]"]
+Removes all [term "mixin class"]es from [arg obj]. This is equivalent
+to passing an empty list for [arg mixinSpecList] to 
+[const [vset SCOPE]] [method {mixin set}].
+
 [def "[arg obj] [const [vset SCOPE]] [method {mixin guard}] [arg className] [arg expr]"]
 
 Registers a guard expression [arg expr] with the [term "mixin class"] [arg className]
Index: doc/property.man.inc
===================================================================
diff -u -ra6fc3eb51bd42559b91e0bceb468b402a0abae83 -r2eb328e4d7f6cb4f21144efdb08c87742d0a44f5
--- doc/property.man.inc	(.../property.man.inc)	(revision a6fc3eb51bd42559b91e0bceb468b402a0abae83)
+++ doc/property.man.inc	(.../property.man.inc)	(revision 2eb328e4d7f6cb4f21144efdb08c87742d0a44f5)
@@ -18,8 +18,8 @@
 Defines a [term property] for the scope of the [vset SCOPE]. The [arg spec] provides
 the [term property] specification as a [cmd list] holding at least one
 element or, maximum, two elements: 
-[emph propertyName][opt ":[emph typeSpec]"] [opt [emph defaultValue]]. The [arg propertyName] sets
-the name of the property and the corresponding object variable(s). It
+[emph propertyName][opt ":[emph typeSpec]"] [opt [emph defaultValue]]. The [arg propertyName] is also used as to form the names of the getter/setter methods,
+if requested (see [option "-accessor"]). It
 is, optionally, equipped with a [emph typeSpec] following a colon
 delimiter which specifies a [term "value checker"] for the values
 which become assigned to the property. The second, optional element
@@ -34,6 +34,8 @@
 Sets the [term property] [arg propertyName] to [arg value].
 [def "[arg obj] [arg propertyName] [method get]"]
 Returns the current value of [term property] [arg propertyName].
+[def "[arg obj] [arg propertyName] [method unset]"]
+Removes the value store of [arg propertyName] (e.g., an object variable), if existing.
 [list_end]
 The option value passed along [option "-accessor"] sets the level of
 [term "call protection"] for the generated getter and setter methods: [term public],
@@ -55,8 +57,8 @@
 [list_begin definitions]
 [def "[arg obj] [arg propertyName] [method add] [arg element] [opt [arg index]]"]
 Adding [arg element] to the managed list value, at the list position given by [arg index] (by default: 0).
-[def "[arg obj] [arg propertyName] [method delete] [arg element] [opt [arg index]]"]
-Removing the first occurrence of [arg value] from the managed list value, starting from list position [arg index] (by default: [const end]).
+[def "[arg obj] [arg propertyName] [method delete] [arg elementPattern]"]
+Removing one or multiple elements from the managed list value which match [arg elementPattern]. [arg elementPattern] can contain matching characters (see [cmd "string match"]).
 [list_end]
 
 
Index: doc/variable.man.inc
===================================================================
diff -u -rc1fee753d016ba499541d64bc3f6aa876c77abf1 -r2eb328e4d7f6cb4f21144efdb08c87742d0a44f5
--- doc/variable.man.inc	(.../variable.man.inc)	(revision c1fee753d016ba499541d64bc3f6aa876c77abf1)
+++ doc/variable.man.inc	(.../variable.man.inc)	(revision 2eb328e4d7f6cb4f21144efdb08c87742d0a44f5)
@@ -26,6 +26,8 @@
 Sets [arg variableName] to [arg varValue].
 [def "[arg obj] [arg variableName] [method get]"]
 Returns the current value of [arg variableName].
+[def "[arg obj] [arg variableName] [method unset]"]
+Removes [arg variableName], if existing, underlying the property.
 [list_end]
 
 The option value passed along [option "-accessor"] sets the level of
@@ -48,8 +50,10 @@
 [list_begin definitions]
 [def "[arg obj] [arg variableName] [method add] [arg element] [opt [arg index]]"]
 Adding [arg element] to the managed list value, at the list position given by [arg index] (by default: 0).
-[def "[arg obj] [arg variableName] [method delete] [arg element] [opt [arg index]]"]
-Removing the first occurrence of [arg value] from the managed list value, starting from list position [arg index] (by default: [const end]).
+[def "[arg obj] [arg variableName] [method delete] [arg elementPattern]"]
+Removing one or multiple elements from the managed list value which
+match [arg elementPattern]. [arg elementPattern] can contain matching
+characters (see [cmd "string match"]).
 [list_end]
 
 [para]