diff --git a/.typos.toml b/.typos.toml
index e464888b..f0060d7d 100644
--- a/.typos.toml
+++ b/.typos.toml
@@ -11,3 +11,4 @@ womens = "womens"
 mrs_claus = "mrs_claus"
 NewCFBEncrypter = "NewCFBEncrypter"
 iterm = "iterm"
+O_WRONLY = "O_WRONLY"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a31acfaf..96213935 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 ## Changelog
 
+### 12.68.0
+
+* `[options]` Improved short options parsing logic
+* `[progress]` Added window size configuration for passthru calculator
+* Fixed typos
+
 ### 12.67.1
 
 * `[options]` Fixed bug with flattening empty arguments
diff --git a/csv/csv.go b/csv/csv.go
index fbe3420a..46966f07 100644
--- a/csv/csv.go
+++ b/csv/csv.go
@@ -25,7 +25,7 @@ type Reader struct {
 
 // ////////////////////////////////////////////////////////////////////////////////// //
 
-// ErrEmptyDest is returned by the ReadTo method if empty destintation slice was given
+// ErrEmptyDest is returned by the ReadTo method if empty destination slice was given
 var ErrEmptyDest = errors.New("Destination slice length must be greater than 1")
 
 // ErrNilReader is returned when reader struct is nil
diff --git a/ek.go b/ek.go
index f1c9656e..305d665a 100644
--- a/ek.go
+++ b/ek.go
@@ -20,7 +20,7 @@ import (
 // ////////////////////////////////////////////////////////////////////////////////// //
 
 // VERSION is current ek package version
-const VERSION = "12.67.1"
+const VERSION = "12.68.0"
 
 // ////////////////////////////////////////////////////////////////////////////////// //
 
diff --git a/fmtc/examples_test.go b/fmtc/examples_test.go
index e1e62a21..3632e927 100644
--- a/fmtc/examples_test.go
+++ b/fmtc/examples_test.go
@@ -91,7 +91,7 @@ func ExamplePrint() {
 	// Print using named color
 	Print("{?error}lawngreen text{!}\n")
 
-	// Redifine "error" color to 24-bit color
+	// Redefine "error" color to 24-bit color
 	NameColor("error", "{#ff0000}")
 
 	// Remove named color
@@ -358,7 +358,7 @@ func ExampleNameColor() {
 	// Print a message with named color
 	Print("{?error}lawngreen text{!}\n")
 
-	// Redifine "error" color to 24-bit color
+	// Redefine "error" color to 24-bit color
 	NameColor("error", "{#ff0000}")
 
 	// Print a message with new color
diff --git a/go.mod b/go.mod
index d399f9f5..1596ab22 100644
--- a/go.mod
+++ b/go.mod
@@ -5,12 +5,12 @@ go 1.18
 require (
 	github.com/essentialkaos/check v1.4.0
 	github.com/essentialkaos/go-linenoise/v3 v3.4.0
-	golang.org/x/crypto v0.9.0
-	golang.org/x/sys v0.8.0
+	golang.org/x/crypto v0.10.0
+	golang.org/x/sys v0.9.0
 )
 
 require (
 	github.com/kr/pretty v0.3.1 // indirect
 	github.com/kr/text v0.2.0 // indirect
-	github.com/rogpeppe/go-internal v1.9.0 // indirect
+	github.com/rogpeppe/go-internal v1.10.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 9f6d9b18..ed93da44 100644
--- a/go.sum
+++ b/go.sum
@@ -8,9 +8,10 @@ github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3x
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
-github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
 github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
-golang.org/x/crypto v0.9.0 h1:LF6fAI+IutBocDJ2OT0Q1g8plpYljMZ4+lty+dsqw3g=
-golang.org/x/crypto v0.9.0/go.mod h1:yrmDGqONDYtNj3tH8X9dzUun2m2lzPa9ngI6/RUPGR0=
-golang.org/x/sys v0.8.0 h1:EBmGv8NaZBZTWvrbjNoL6HVt+IVy3QDQpJs7VRIw3tU=
-golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
+github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
+golang.org/x/crypto v0.10.0 h1:LKqV2xt9+kDzSTfOhx4FrkEBcMrAgHSYgzywV9zcGmM=
+golang.org/x/crypto v0.10.0/go.mod h1:o4eNf7Ede1fv+hwOwZsTHl9EsPFO6q6ZvYR8vYfY45I=
+golang.org/x/sys v0.9.0 h1:KS/R3tvhPqvJvwcKfnBHJwwthS11LRhmM5D59eEXa0s=
+golang.org/x/sys v0.9.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
diff --git a/options/options.go b/options/options.go
index 898dec0a..afe0d6a8 100644
--- a/options/options.go
+++ b/options/options.go
@@ -495,10 +495,10 @@ func (opts *Options) parseOptions(rawOpts []string) (Arguments, []error) {
 				arguments = append(arguments, Argument(curOpt))
 				continue
 
-			case curOptLen > 2 && curOpt[0:2] == "--":
+			case curOptLen > 2 && curOpt[:2] == "--":
 				curOptName, curOptValue, err = opts.parseLongOption(curOpt[2:curOptLen])
 
-			case curOptLen > 1 && curOpt[0:1] == "-":
+			case curOptLen > 1 && curOpt[:1] == "-":
 				curOptName, curOptValue, err = opts.parseShortOption(curOpt[1:curOptLen])
 
 			case mixedOpt:
@@ -519,6 +519,11 @@ func (opts *Options) parseOptions(rawOpts []string) (Arguments, []error) {
 				continue
 			}
 
+			if curOptName == "" && curOptValue == "" {
+				arguments = append(arguments, Argument(curOpt))
+				continue
+			}
+
 			if curOptName != "" && mixedOpt {
 				errorList = appendError(
 					errorList,
@@ -612,6 +617,10 @@ func (opts *Options) parseShortOption(opt string) (string, string, error) {
 		return opts.short[optName], strings.Join(optSlice[1:], "="), nil
 	}
 
+	if len(opt) > 2 {
+		return "", "", nil
+	}
+
 	if opts.short[opt] == "" {
 		return "", "", OptionError{"-" + opt, "", ERROR_UNSUPPORTED}
 	}
diff --git a/options/options_test.go b/options/options_test.go
index 425223e3..380152b8 100644
--- a/options/options_test.go
+++ b/options/options_test.go
@@ -194,7 +194,7 @@ func (s *OptUtilSuite) TestBound(c *C) {
 }
 
 func (s *OptUtilSuite) TestGetters(c *C) {
-	argline := "file.mp3 -s STRING --required TEST -i 320 -b -f 1.098765 -S2 100 -f1 5 -f2 1 -ms ABC --merg-string DEF -mi 6 --merg-int 6 -f3 12 -mf 10.1 -mf 10.1 -i1 5"
+	argline := "file.mp3 -SAT -s STRING --required TEST -i 320 -b -f 1.098765 -S2 100 -f1 5 -f2 1 -ms ABC --merg-string DEF -mi 6 --merg-int 6 -f3 12 -mf 10.1 -mf 10.1 -i1 5"
 
 	optMap := Map{
 		"s:string":          {Type: STRING, Value: "STRING"},
@@ -220,7 +220,13 @@ func (s *OptUtilSuite) TestGetters(c *C) {
 	}
 
 	opts := NewOptions()
-	opts.Parse(strings.Split(argline, " "), optMap)
+	args, errs := opts.Parse(strings.Split(argline, " "), optMap)
+
+	c.Assert(errs, HasLen, 0)
+	c.Assert(args, HasLen, 2)
+
+	c.Assert(args.Get(0).String(), Equals, "file.mp3")
+	c.Assert(args.Get(1).String(), Equals, "-SAT")
 
 	c.Assert(opts.GetS("_not_exist_"), Equals, "")
 	c.Assert(opts.GetI("_not_exist_"), Equals, 0)
diff --git a/progress/examples_test.go b/progress/examples_test.go
index 5bdd7cca..9dc32828 100644
--- a/progress/examples_test.go
+++ b/progress/examples_test.go
@@ -18,7 +18,7 @@ import (
 
 // ////////////////////////////////////////////////////////////////////////////////// //
 
-func SimpleExample() {
+func ExampleNew_simple() {
 	pb := progress.New(1000, "Counting…")
 
 	// You can use default settings as a starting point
@@ -41,7 +41,7 @@ func SimpleExample() {
 	pb.Finish() // Stop async progress handling
 }
 
-func DownloadExample() {
+func ExampleNew_download() {
 	pb := progress.New(0, "file.zip")
 	resp, err := req.Request{URL: "https://domain.com/file.zip"}.Get()
 
diff --git a/progress/progress.go b/progress/progress.go
index d3850321..e882a2a0 100644
--- a/progress/progress.go
+++ b/progress/progress.go
@@ -11,6 +11,7 @@ package progress
 import (
 	"fmt"
 	"io"
+	"math"
 	"strconv"
 	"strings"
 	"sync"
@@ -80,6 +81,8 @@ type Settings struct {
 	Width    int
 	NameSize int
 
+	WindowSizeSec int64 // Window size for passtru reader
+
 	IsSize bool
 }
 
@@ -114,6 +117,7 @@ var DefaultSettings = Settings{
 	ShowRemaining:     true,
 	IsSize:            true,
 	Width:             88,
+	WindowSizeSec:     15.0,
 }
 
 // ////////////////////////////////////////////////////////////////////////////////// //
@@ -155,7 +159,9 @@ func (b *Bar) Start() {
 	}
 
 	if b.total > 0 {
-		b.passThruCalc = NewPassThruCalc(b.total, 10.0)
+		b.passThruCalc = NewPassThruCalc(
+			b.total, math.Max(1.0, float64(b.settings.WindowSizeSec)),
+		)
 	}
 
 	go b.renderer()
@@ -223,7 +229,9 @@ func (b *Bar) SetTotal(v int64) {
 	b.mu.Lock()
 
 	if b.passThruCalc == nil {
-		b.passThruCalc = NewPassThruCalc(v, 10.0)
+		b.passThruCalc = NewPassThruCalc(
+			v, math.Max(1.0, float64(b.settings.WindowSizeSec)),
+		)
 	} else {
 		b.passThruCalc.SetTotal(v)
 	}
@@ -277,7 +285,7 @@ func (b *Bar) Add64(v int64) {
 	atomic.AddInt64(&b.current, v)
 }
 
-// IsFinished returns true if progress proccesing is finished
+// IsFinished returns true if progress processing is finished
 func (b *Bar) IsFinished() bool {
 	if b == nil {
 		return false
@@ -288,7 +296,7 @@ func (b *Bar) IsFinished() bool {
 	return b.finished
 }
 
-// IsStarted returns true if progress proccesing is started
+// IsStarted returns true if progress processing is started
 func (b *Bar) IsStarted() bool {
 	if b == nil {
 		return false