diff --git a/CHANGELOG.md b/CHANGELOG.md
index 90d0e5c7..79b802af 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 ## Changelog
 
+### [13.9.2](https://kaos.sh/ek/13.9.2)
+
+- `[knf]` Added helper `Q`
+- `[fmtc]` Code refactoring
+- `[usage]` Code refactoring
+
 ### [13.9.1](https://kaos.sh/ek/13.9.1)
 
 - `[errors]` Fixed bug with extra newline character at the end of `Error` output
diff --git a/fmtc/cond_wrapper.go b/fmtc/cond_wrapper.go
index de730758..cd167888 100644
--- a/fmtc/cond_wrapper.go
+++ b/fmtc/cond_wrapper.go
@@ -11,15 +11,13 @@ import "io"
 
 // ////////////////////////////////////////////////////////////////////////////////// //
 
-type CondWrapper struct {
-	match bool
-}
+type CondWrapper bool
 
 // ////////////////////////////////////////////////////////////////////////////////// //
 
 // If returns wrapper for printing messages if condition is true
 func If(cond bool) CondWrapper {
-	return CondWrapper{cond}
+	return CondWrapper(cond)
 }
 
 // ////////////////////////////////////////////////////////////////////////////////// //
@@ -27,7 +25,7 @@ func If(cond bool) CondWrapper {
 // Print formats using the default formats for its operands and writes to standard
 // output.
 func (cw CondWrapper) Print(a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -38,7 +36,7 @@ func (cw CondWrapper) Print(a ...any) (int, error) {
 // output. Spaces are always added between operands and a newline is appended. It
 // returns the number of bytes written and any write error encountered.
 func (cw CondWrapper) Println(a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -48,7 +46,7 @@ func (cw CondWrapper) Println(a ...any) (int, error) {
 // Printf formats according to a format specifier and writes to standard output. It
 // returns the number of bytes written and any write error encountered.
 func (cw CondWrapper) Printf(f string, a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -59,7 +57,7 @@ func (cw CondWrapper) Printf(f string, a ...any) (int, error) {
 // Spaces are added between operands when neither is a string. It returns the
 // number of bytes written and any write error encountered.
 func (cw CondWrapper) Fprint(w io.Writer, a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -70,7 +68,7 @@ func (cw CondWrapper) Fprint(w io.Writer, a ...any) (int, error) {
 // Spaces are always added between operands and a newline is appended. It returns
 // the number of bytes written and any write error encountered.
 func (cw CondWrapper) Fprintln(w io.Writer, a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -80,7 +78,7 @@ func (cw CondWrapper) Fprintln(w io.Writer, a ...any) (int, error) {
 // Fprintf formats according to a format specifier and writes to w. It returns
 // the number of bytes written and any write error encountered.
 func (cw CondWrapper) Fprintf(w io.Writer, f string, a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -90,7 +88,7 @@ func (cw CondWrapper) Fprintf(w io.Writer, f string, a ...any) (int, error) {
 // Sprint formats using the default formats for its operands and returns the
 // resulting string. Spaces are added between operands when neither is a string.
 func (cw CondWrapper) Sprint(a ...any) string {
-	if !cw.match {
+	if !cw {
 		return ""
 	}
 
@@ -100,7 +98,7 @@ func (cw CondWrapper) Sprint(a ...any) string {
 // Sprintf formats according to a format specifier and returns the resulting
 // string.
 func (cw CondWrapper) Sprintf(f string, a ...any) string {
-	if !cw.match {
+	if !cw {
 		return ""
 	}
 
@@ -111,7 +109,7 @@ func (cw CondWrapper) Sprintf(f string, a ...any) string {
 // resulting string. Spaces are always added between operands and a newline is
 // appended.
 func (cw CondWrapper) Sprintln(a ...any) string {
-	if !cw.match {
+	if !cw {
 		return ""
 	}
 
@@ -120,7 +118,7 @@ func (cw CondWrapper) Sprintln(a ...any) string {
 
 // TPrint removes all content on the current line and prints the new message
 func (cw CondWrapper) TPrint(a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -129,7 +127,7 @@ func (cw CondWrapper) TPrint(a ...any) (int, error) {
 
 // TPrintf removes all content on the current line and prints the new message
 func (cw CondWrapper) TPrintf(f string, a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -139,7 +137,7 @@ func (cw CondWrapper) TPrintf(f string, a ...any) (int, error) {
 // TPrintln removes all content on the current line and prints the new message
 // with a new line symbol at the end
 func (cw CondWrapper) TPrintln(a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -149,7 +147,7 @@ func (cw CondWrapper) TPrintln(a ...any) (int, error) {
 // LPrint formats using the default formats for its operands and writes to standard
 // output limited by the text size
 func (cw CondWrapper) LPrint(maxSize int, a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -159,7 +157,7 @@ func (cw CondWrapper) LPrint(maxSize int, a ...any) (int, error) {
 // LPrintf formats according to a format specifier and writes to standard output
 // limited by the text size
 func (cw CondWrapper) LPrintf(maxSize int, f string, a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -169,7 +167,7 @@ func (cw CondWrapper) LPrintf(maxSize int, f string, a ...any) (int, error) {
 // LPrintln formats using the default formats for its operands and writes to standard
 // output limited by the text size
 func (cw CondWrapper) LPrintln(maxSize int, a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -179,7 +177,7 @@ func (cw CondWrapper) LPrintln(maxSize int, a ...any) (int, error) {
 // TLPrint removes all content on the current line and prints the new message
 // limited by the text size
 func (cw CondWrapper) TLPrint(maxSize int, a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -189,7 +187,7 @@ func (cw CondWrapper) TLPrint(maxSize int, a ...any) (int, error) {
 // TLPrintf removes all content on the current line and prints the new message
 // limited by the text size
 func (cw CondWrapper) TLPrintf(maxSize int, f string, a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -199,7 +197,7 @@ func (cw CondWrapper) TLPrintf(maxSize int, f string, a ...any) (int, error) {
 // TPrintln removes all content on the current line and prints the new message
 // limited by the text size with a new line symbol at the end
 func (cw CondWrapper) TLPrintln(maxSize int, a ...any) (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -208,7 +206,7 @@ func (cw CondWrapper) TLPrintln(maxSize int, a ...any) (int, error) {
 
 // NewLine prints a newline to standard output
 func (cw CondWrapper) NewLine() (int, error) {
-	if !cw.match {
+	if !cw {
 		return 0, nil
 	}
 
@@ -217,7 +215,7 @@ func (cw CondWrapper) NewLine() (int, error) {
 
 // Bell prints alert (bell) symbol
 func (cw CondWrapper) Bell() {
-	if !cw.match {
+	if !cw {
 		return
 	}
 
diff --git a/knf/example_test.go b/knf/example_test.go
index a43fb8cd..c848ae75 100644
--- a/knf/example_test.go
+++ b/knf/example_test.go
@@ -25,6 +25,9 @@ func ExampleGlobal() {
 	// Read string value
 	GetS("main:string")
 
+	// Use helper Q to create full property name
+	GetS(Q("main", "string"))
+
 	// Read integer value
 	GetI("main:int")
 
diff --git a/knf/knf.go b/knf/knf.go
index 919053e5..84d89365 100644
--- a/knf/knf.go
+++ b/knf/knf.go
@@ -423,6 +423,12 @@ func Validate(validators Validators) errors.Errors {
 	return global.Validate(validators)
 }
 
+// Q is a helper to create a valid full property name (section + delimiter
+// + property name)
+func Q(section, prop string) string {
+	return section + _SYMBOL_DELIMITER + prop
+}
+
 // ////////////////////////////////////////////////////////////////////////////////// //
 
 // Add adds given validators and returns new slice
diff --git a/knf/knf_test.go b/knf/knf_test.go
index 08a33f97..0f591e3c 100644
--- a/knf/knf_test.go
+++ b/knf/knf_test.go
@@ -747,6 +747,10 @@ func (s *KNFSuite) TestKNFParserExceptions(c *check.C) {
 	c.Assert(err.Error(), check.Equals, "Error at line 3: Unknown property {abcd:test}")
 }
 
+func (s *KNFSuite) TestHelpers(c *check.C) {
+	c.Assert(Q("section", "prop"), check.Equals, "section:prop")
+}
+
 // ////////////////////////////////////////////////////////////////////////////////// //
 
 func (s *KNFSuite) BenchmarkBasic(c *check.C) {
diff --git a/usage/usage.go b/usage/usage.go
index 4d46196e..642900cf 100644
--- a/usage/usage.go
+++ b/usage/usage.go
@@ -178,16 +178,16 @@ func NewInfo(args ...string) *Info {
 
 // AddGroup adds new command group
 func (i *Info) AddGroup(group string) {
-	if i == nil {
+	if i == nil || group == "" {
 		return
 	}
 
 	i.curGroup = group
 }
 
-// AddCommand adds command (name, description, args)
-func (i *Info) AddCommand(a ...string) *Command {
-	if i == nil || len(a) < 2 {
+// AddCommand adds command
+func (i *Info) AddCommand(name, desc string, args ...string) *Command {
+	if i == nil || name == "" || desc == "" {
 		return nil
 	}
 
@@ -198,9 +198,9 @@ func (i *Info) AddCommand(a ...string) *Command {
 	}
 
 	cmd := &Command{
-		Name:  a[0],
-		Desc:  a[1],
-		Args:  a[2:],
+		Name:  name,
+		Desc:  desc,
+		Args:  args,
 		Group: group,
 		info:  i,
 	}
@@ -211,17 +211,17 @@ func (i *Info) AddCommand(a ...string) *Command {
 }
 
 // AddOption adds option (name, description, args)
-func (i *Info) AddOption(a ...string) *Option {
-	if i == nil || len(a) < 2 {
+func (i *Info) AddOption(name, desc string, args ...string) *Option {
+	if i == nil || name == "" || desc == "" {
 		return nil
 	}
 
-	long, short := parseOptionName(a[0])
+	long, short := parseOptionName(name)
 	opt := &Option{
 		Long:  long,
 		Short: short,
-		Desc:  a[1],
-		Arg:   strings.Join(a[2:], " "),
+		Desc:  desc,
+		Arg:   strings.Join(args, " "),
 		info:  i,
 	}
 
@@ -231,25 +231,33 @@ func (i *Info) AddOption(a ...string) *Option {
 }
 
 // AddExample adds example of application usage
-func (i *Info) AddExample(a ...string) {
-	if i == nil || len(a) == 0 {
+func (i *Info) AddExample(cmd string, desc ...string) {
+	if i == nil || cmd == "" {
 		return
 	}
 
-	a = append(a, "")
+	var cmdDesc string
+
+	if len(desc) != 0 {
+		cmdDesc = desc[0]
+	}
 
-	i.Examples = append(i.Examples, &Example{a[0], a[1], false, i})
+	i.Examples = append(i.Examples, &Example{cmd, cmdDesc, false, i})
 }
 
 // AddRawExample adds example of application usage without command prefix
-func (i *Info) AddRawExample(a ...string) {
-	if i == nil || len(a) == 0 {
+func (i *Info) AddRawExample(cmd string, desc ...string) {
+	if i == nil || cmd == "" {
 		return
 	}
 
-	a = append(a, "")
+	var cmdDesc string
+
+	if len(desc) != 0 {
+		cmdDesc = desc[0]
+	}
 
-	i.Examples = append(i.Examples, &Example{a[0], a[1], true, i})
+	i.Examples = append(i.Examples, &Example{cmd, cmdDesc, true, i})
 }
 
 // AddSpoiler adds spoiler
diff --git a/usage/usage_test.go b/usage/usage_test.go
index 817e9711..81a75f9b 100644
--- a/usage/usage_test.go
+++ b/usage/usage_test.go
@@ -102,27 +102,28 @@ func (s *UsageSuite) TestUsage(c *C) {
 
 	info.AddSpoiler("This is usage of spoiler with {#240}c{#241}o{#242}l{#243}o{#244}r{#245}s {#246}s{#247}u{#248}p{#249}p{#250}o{#251}r{#252}t{!}")
 
-	info.AddCommand() // will be ignored
+	info.AddCommand("", "")     // will be ignored
+	info.AddCommand("test", "") // will be ignored
 	info.AddCommand("print", "Print command")
 
 	info.AddGroup("Command group")
 
-	info.AddCommand("read")
 	info.AddCommand("read", "Read command")
 	info.AddCommand("read1", "Read command with arguments", "arg1", "arg2")
 	info.AddCommand("read2", "Read command with optional argument and very very very {*b}long{!} and {c}colored{!} description", "?arg")
 
-	info.AddOption("t:test")
+	info.AddOption("", "")     // will be ignored
+	info.AddOption("test", "") // will be ignored
 	info.AddOption("t:test", "Test option ")
 	info.AddOption("test1", "Test option with argument", "arg")
 	info.AddOption("test2", "Test option with optional argument and very very very {*b}long{!} and {c}colored{!} description", "?arg")
 
 	info.BoundOptions("read", "t:test", "test1")
 
-	info.AddExample() // will be ignored
+	info.AddExample("") // will be ignored
 	info.AddExample("abc")
 	info.AddExample("abc", "Example with very long description that not fits default 88 symbols limit and link https://domain.com/#EC103814B9CCB1E305CE20D6A25E681D3735D2301D5BB631B8DFA0ABB2394A99631B8DFA0ABB2394A99")
-	info.AddRawExample() // will be ignored
+	info.AddRawExample("") // will be ignored
 	info.AddRawExample("echo 123 | myapp")
 	info.AddRawExample("echo 123 | myapp", "Example with description")
 
@@ -184,9 +185,10 @@ func (s *UsageSuite) TestVersionInfo(c *C) {
 
 func (s *UsageSuite) TestNils(c *C) {
 	var i *Info
+
 	c.Assert(func() { i.AddGroup("test") }, NotPanics)
-	c.Assert(func() { i.AddCommand("test") }, NotPanics)
-	c.Assert(func() { i.AddOption("test") }, NotPanics)
+	c.Assert(func() { i.AddCommand("test", "test") }, NotPanics)
+	c.Assert(func() { i.AddOption("test", "test") }, NotPanics)
 	c.Assert(func() { i.AddExample("test") }, NotPanics)
 	c.Assert(func() { i.AddRawExample("test") }, NotPanics)
 	c.Assert(func() { i.AddSpoiler("test") }, NotPanics)
diff --git a/version.go b/version.go
index fbca6c6a..cc2b131f 100644
--- a/version.go
+++ b/version.go
@@ -8,4 +8,4 @@ package ek
 // ////////////////////////////////////////////////////////////////////////////////// //
 
 // VERSION is current ek package version
-const VERSION = "13.9.1"
+const VERSION = "13.9.2"