diff --git a/color.go b/color.go
index b50b2b6..1f14542 100644
--- a/color.go
+++ b/color.go
@@ -4,7 +4,7 @@ import "image/color"
 
 // SelectColor displays the color selection dialog.
 //
-// Valid options: Title, Color, ShowPalette.
+// Valid options: Title, WindowIcon, Attach, Modal, Color, ShowPalette.
 //
 // May return: ErrCanceled.
 func SelectColor(options ...Option) (color.Color, error) {
diff --git a/color_unix.go b/color_unix.go
index f2ac465..264558b 100644
--- a/color_unix.go
+++ b/color_unix.go
@@ -11,7 +11,7 @@ import (
 func selectColor(opts options) (color.Color, error) {
 	args := []string{"--color-selection"}
 
-	args = appendTitle(args, opts)
+	args = appendGeneral(args, opts)
 	if opts.color != nil {
 		args = append(args, "--color", zenutil.UnparseColor(opts.color))
 	}
diff --git a/date.go b/date.go
index 07b354f..04ca536 100644
--- a/date.go
+++ b/date.go
@@ -5,7 +5,7 @@ import "time"
 // Calendar displays the calendar dialog.
 //
 // Valid options: Title, Width, Height, OKLabel, CancelLabel, ExtraButton,
-// Icon, DefaultDate.
+// WindowIcon, Attach, Modal, DefaultDate.
 //
 // May return: ErrCanceled, ErrExtraButton.
 func Calendar(text string, options ...Option) (time.Time, error) {
diff --git a/date_unix.go b/date_unix.go
index de403ed..d6f490d 100644
--- a/date_unix.go
+++ b/date_unix.go
@@ -11,7 +11,7 @@ import (
 
 func calendar(text string, opts options) (time.Time, error) {
 	args := []string{"--calendar", "--text", text, "--date-format", zenutil.DateFormat}
-	args = appendTitle(args, opts)
+	args = appendGeneral(args, opts)
 	args = appendButtons(args, opts)
 	args = appendWidthHeight(args, opts)
 	args = appendWindowIcon(args, opts)
diff --git a/entry.go b/entry.go
index 011567e..c8706e6 100644
--- a/entry.go
+++ b/entry.go
@@ -3,7 +3,7 @@ package zenity
 // Entry displays the text entry dialog.
 //
 // Valid options: Title, Width, Height, OKLabel, CancelLabel, ExtraButton,
-// Icon, EntryText, HideText.
+// WindowIcon, Attach, Modal, EntryText, HideText.
 //
 // May return: ErrCanceled, ErrExtraButton.
 func Entry(text string, options ...Option) (string, error) {
diff --git a/entry_unix.go b/entry_unix.go
index f6bab51..9444854 100644
--- a/entry_unix.go
+++ b/entry_unix.go
@@ -8,7 +8,7 @@ import (
 
 func entry(text string, opts options) (string, error) {
 	args := []string{"--entry", "--text", text}
-	args = appendTitle(args, opts)
+	args = appendGeneral(args, opts)
 	args = appendButtons(args, opts)
 	args = appendWidthHeight(args, opts)
 	args = appendWindowIcon(args, opts)
diff --git a/file.go b/file.go
index 9f682d7..b2c8a32 100644
--- a/file.go
+++ b/file.go
@@ -8,7 +8,8 @@ import (
 
 // SelectFile displays the file selection dialog.
 //
-// Valid options: Title, Directory, Filename, ShowHidden, FileFilter(s).
+// Valid options: Title, WindowIcon, Attach, Modal, Directory, Filename,
+// ShowHidden, FileFilter(s).
 //
 // May return: ErrCanceled.
 func SelectFile(options ...Option) (string, error) {
@@ -17,7 +18,8 @@ func SelectFile(options ...Option) (string, error) {
 
 // SelectFileMultiple displays the multiple file selection dialog.
 //
-// Valid options: Title, Directory, Filename, ShowHidden, FileFilter(s).
+// Valid options: Title, WindowIcon, Attach, Modal, Directory, Filename,
+// ShowHidden, FileFilter(s).
 //
 // May return: ErrCanceled, ErrUnsupported.
 func SelectFileMultiple(options ...Option) ([]string, error) {
@@ -31,8 +33,8 @@ func SelectFileMutiple(options ...Option) ([]string, error) {
 
 // SelectFileSave displays the save file selection dialog.
 //
-// Valid options: Title, Filename, ConfirmOverwrite, ConfirmCreate, ShowHidden,
-// FileFilter(s).
+// Valid options: Title, WindowIcon, Attach, Modal, Filename,
+// ConfirmOverwrite, ConfirmCreate, ShowHidden, FileFilter(s).
 //
 // May return: ErrCanceled.
 func SelectFileSave(options ...Option) (string, error) {
diff --git a/file_unix.go b/file_unix.go
index 077efa4..bef1872 100644
--- a/file_unix.go
+++ b/file_unix.go
@@ -10,7 +10,7 @@ import (
 
 func selectFile(opts options) (string, error) {
 	args := []string{"--file-selection"}
-	args = appendTitle(args, opts)
+	args = appendGeneral(args, opts)
 	args = appendFileArgs(args, opts)
 
 	out, err := zenutil.Run(opts.ctx, args)
@@ -19,7 +19,7 @@ func selectFile(opts options) (string, error) {
 
 func selectFileMultiple(opts options) ([]string, error) {
 	args := []string{"--file-selection", "--multiple", "--separator", zenutil.Separator}
-	args = appendTitle(args, opts)
+	args = appendGeneral(args, opts)
 	args = appendFileArgs(args, opts)
 
 	out, err := zenutil.Run(opts.ctx, args)
@@ -28,7 +28,7 @@ func selectFileMultiple(opts options) ([]string, error) {
 
 func selectFileSave(opts options) (string, error) {
 	args := []string{"--file-selection", "--save"}
-	args = appendTitle(args, opts)
+	args = appendGeneral(args, opts)
 	args = appendFileArgs(args, opts)
 
 	out, err := zenutil.Run(opts.ctx, args)
diff --git a/list.go b/list.go
index 1e72a90..a2d14c8 100644
--- a/list.go
+++ b/list.go
@@ -3,7 +3,7 @@ package zenity
 // List displays the list dialog.
 //
 // Valid options: Title, Width, Height, OKLabel, CancelLabel, ExtraButton,
-// Icon, DefaultItems, DisallowEmpty.
+// WindowIcon, Attach, Modal, DefaultItems, DisallowEmpty.
 //
 // May return: ErrCanceled, ErrExtraButton, ErrUnsupported.
 func List(text string, items []string, options ...Option) (string, error) {
@@ -20,7 +20,7 @@ func ListItems(text string, items ...string) (string, error) {
 // ListMultiple displays the list dialog, allowing multiple items to be selected.
 //
 // Valid options: Title, Width, Height, OKLabel, CancelLabel, ExtraButton,
-// Icon, DefaultItems, DisallowEmpty.
+// WindowIcon, Attach, Modal, DefaultItems, DisallowEmpty.
 //
 // May return: ErrCanceled, ErrExtraButton, ErrUnsupported.
 func ListMultiple(text string, items []string, options ...Option) ([]string, error) {
diff --git a/list_unix.go b/list_unix.go
index 3476bd1..7a7e0ae 100644
--- a/list_unix.go
+++ b/list_unix.go
@@ -6,7 +6,7 @@ import "github.com/ncruces/zenity/internal/zenutil"
 
 func list(text string, items []string, opts options) (string, error) {
 	args := []string{"--list", "--column=", "--hide-header", "--text", text}
-	args = appendTitle(args, opts)
+	args = appendGeneral(args, opts)
 	args = appendButtons(args, opts)
 	args = appendWidthHeight(args, opts)
 	args = appendWindowIcon(args, opts)
@@ -18,7 +18,7 @@ func list(text string, items []string, opts options) (string, error) {
 
 func listMultiple(text string, items []string, opts options) ([]string, error) {
 	args := []string{"--list", "--column=", "--hide-header", "--text", text, "--multiple", "--separator", zenutil.Separator}
-	args = appendTitle(args, opts)
+	args = appendGeneral(args, opts)
 	args = appendButtons(args, opts)
 	args = appendWidthHeight(args, opts)
 	args = appendWindowIcon(args, opts)
diff --git a/msg.go b/msg.go
index 592e217..1e01afd 100644
--- a/msg.go
+++ b/msg.go
@@ -3,7 +3,7 @@ package zenity
 // Question displays the question dialog.
 //
 // Valid options: Title, Width, Height, OKLabel, CancelLabel, ExtraButton,
-// Icon, NoWrap, Ellipsize, DefaultCancel.
+// Icon, WindowIcon, Attach, Modal, NoWrap, Ellipsize, DefaultCancel.
 //
 // May return: ErrCanceled, ErrExtraButton.
 func Question(text string, options ...Option) error {
@@ -12,8 +12,8 @@ func Question(text string, options ...Option) error {
 
 // Info displays the info dialog.
 //
-// Valid options: Title, Width, Height, OKLabel, ExtraButton, Icon,
-// NoWrap, Ellipsize.
+// Valid options: Title, Width, Height, OKLabel, ExtraButton,
+// Icon, WindowIcon, Attach, Modal, NoWrap, Ellipsize.
 //
 // May return: ErrCanceled, ErrExtraButton.
 func Info(text string, options ...Option) error {
@@ -22,8 +22,8 @@ func Info(text string, options ...Option) error {
 
 // Warning displays the warning dialog.
 //
-// Valid options: Title, Width, Height, OKLabel, ExtraButton, Icon,
-// NoWrap, Ellipsize.
+// Valid options: Title, Width, Height, OKLabel, ExtraButton,
+// Icon, WindowIcon, Attach, Modal, NoWrap, Ellipsize.
 //
 // May return: ErrCanceled, ErrExtraButton.
 func Warning(text string, options ...Option) error {
@@ -32,8 +32,8 @@ func Warning(text string, options ...Option) error {
 
 // Error displays the error dialog.
 //
-// Valid options: Title, Width, Height, OKLabel, ExtraButton, Icon,
-// NoWrap, Ellipsize.
+// Valid options: Title, Width, Height, OKLabel, ExtraButton,
+// Icon, WindowIcon, Attach, Modal, NoWrap, Ellipsize.
 //
 // May return: ErrCanceled, ErrExtraButton.
 func Error(text string, options ...Option) error {
diff --git a/msg_unix.go b/msg_unix.go
index eb86aaf..c99dc8f 100644
--- a/msg_unix.go
+++ b/msg_unix.go
@@ -16,7 +16,7 @@ func message(kind messageKind, text string, opts options) error {
 	case errorKind:
 		args = append(args, "--error")
 	}
-	args = appendTitle(args, opts)
+	args = appendGeneral(args, opts)
 	args = appendButtons(args, opts)
 	args = appendWidthHeight(args, opts)
 	args = appendWindowIcon(args, opts)
diff --git a/notify_unix.go b/notify_unix.go
index c31c095..9c3c979 100644
--- a/notify_unix.go
+++ b/notify_unix.go
@@ -6,7 +6,7 @@ import "github.com/ncruces/zenity/internal/zenutil"
 
 func notify(text string, opts options) error {
 	args := []string{"--notification", "--text", text}
-	args = appendTitle(args, opts)
+	args = appendGeneral(args, opts)
 	switch opts.icon {
 	case ErrorIcon:
 		args = append(args, "--window-icon=dialog-error")
diff --git a/progress.go b/progress.go
index 623ca2c..bf03ce9 100644
--- a/progress.go
+++ b/progress.go
@@ -3,7 +3,7 @@ package zenity
 // Progress displays the progress indication dialog.
 //
 // Valid options: Title, Width, Height, OKLabel, CancelLabel, ExtraButton,
-// Icon, MaxValue, Pulsate, NoCancel, TimeRemaining.
+// Icon, WindowIcon, Attach, Modal, MaxValue, Pulsate, NoCancel, TimeRemaining.
 //
 // May return: ErrUnsupported.
 func Progress(options ...Option) (ProgressDialog, error) {
diff --git a/progress_unix.go b/progress_unix.go
index 4451002..7c9f74f 100644
--- a/progress_unix.go
+++ b/progress_unix.go
@@ -6,7 +6,7 @@ import "github.com/ncruces/zenity/internal/zenutil"
 
 func progress(opts options) (ProgressDialog, error) {
 	args := []string{"--progress"}
-	args = appendTitle(args, opts)
+	args = appendGeneral(args, opts)
 	args = appendButtons(args, opts)
 	args = appendWidthHeight(args, opts)
 	args = appendWindowIcon(args, opts)
diff --git a/pwd.go b/pwd.go
index 3992478..9d7216c 100644
--- a/pwd.go
+++ b/pwd.go
@@ -2,7 +2,8 @@ package zenity
 
 // Password displays the password dialog.
 //
-// Valid options: Title, OKLabel, CancelLabel, ExtraButton, Icon, Username.
+// Valid options: Title, OKLabel, CancelLabel, ExtraButton,
+// WindowIcon, Attach, Modal, Username.
 //
 // May return: ErrCanceled, ErrExtraButton.
 func Password(options ...Option) (usr string, pwd string, err error) {
diff --git a/pwd_unix.go b/pwd_unix.go
index c720459..aacb6c4 100644
--- a/pwd_unix.go
+++ b/pwd_unix.go
@@ -6,7 +6,7 @@ import "github.com/ncruces/zenity/internal/zenutil"
 
 func password(opts options) (string, string, error) {
 	args := []string{"--password"}
-	args = appendTitle(args, opts)
+	args = appendGeneral(args, opts)
 	args = appendButtons(args, opts)
 	if opts.username {
 		args = append(args, "--username")
diff --git a/util_unix.go b/util_unix.go
index ca66265..fe6c168 100644
--- a/util_unix.go
+++ b/util_unix.go
@@ -4,6 +4,7 @@ package zenity
 
 import (
 	"bytes"
+	"fmt"
 	"os/exec"
 	"strconv"
 	"strings"
@@ -11,10 +12,16 @@ import (
 	"github.com/ncruces/zenity/internal/zenutil"
 )
 
-func appendTitle(args []string, opts options) []string {
+func appendGeneral(args []string, opts options) []string {
 	if opts.title != nil {
 		args = append(args, "--title", *opts.title)
 	}
+	if opts.attach != nil {
+		args = append(args, "--attach", fmt.Sprint(opts.attach))
+	}
+	if opts.modal {
+		args = append(args, "--modal")
+	}
 	return args
 }
 
diff --git a/util_unix_test.go b/util_unix_test.go
index 44c3a23..1aa65d2 100644
--- a/util_unix_test.go
+++ b/util_unix_test.go
@@ -11,9 +11,13 @@ import (
 	"github.com/ncruces/zenity/internal/zenutil"
 )
 
-func Test_appendTitle(t *testing.T) {
-	got := appendTitle(nil, options{title: stringPtr("Title")})
-	want := []string{"--title", "Title"}
+func Test_appendGeneral(t *testing.T) {
+	got := appendGeneral(nil, options{
+		title:  stringPtr("Title"),
+		attach: 12345,
+		modal:  true,
+	})
+	want := []string{"--title", "Title", "--attach", "12345", "--modal"}
 	if !reflect.DeepEqual(got, want) {
 		t.Errorf("appendTitle() = %v; want %v", got, want)
 	}
diff --git a/zenity.go b/zenity.go
index 98518e1..7b4e6bf 100644
--- a/zenity.go
+++ b/zenity.go
@@ -44,6 +44,8 @@ type options struct {
 	defaultCancel bool
 	icon          any
 	windowIcon    any
+	attach        any
+	modal         bool
 
 	// Message options
 	noWrap    bool
@@ -169,7 +171,7 @@ func Icon(icon any) Option {
 	return funcOption(func(o *options) { o.icon = icon })
 }
 
-// WindowIcon returns an Option to set the dialog icon (macOS and Unix only).
+// WindowIcon returns an Option to set the window icon.
 //
 // WindowIcon accepts a DialogIcon, or a string path.
 func WindowIcon(icon any) Option {
@@ -182,13 +184,23 @@ func WindowIcon(icon any) Option {
 	return funcOption(func(o *options) { o.windowIcon = icon })
 }
 
-// CustomIcon returns an Option to set a custom dialog icon, loaded from a file.
+// CustomIcon returns an Option to set a custom dialog icon.
 //
 // Deprecated: use Icon instead.
 func CustomIcon(path string) Option {
 	return Icon(path)
 }
 
+// Attach returns an Option to set the parent window to attach to.
+func Attach(id any) Option {
+	return funcOption(func(o *options) { o.attach = id })
+}
+
+// Modal returns an Option to set the modal hint.
+func Modal() Option {
+	return funcOption(func(o *options) { o.modal = true })
+}
+
 // Context returns an Option to set a Context that can dismiss the dialog.
 //
 // Dialogs dismissed by ctx return ctx.Err().
diff --git a/zenity_test.go b/zenity_test.go
index 4406205..629e27d 100644
--- a/zenity_test.go
+++ b/zenity_test.go
@@ -27,6 +27,9 @@ func Test_applyOptions(t *testing.T) {
 		{name: "WindowIcon", args: WindowIcon("error"), want: options{windowIcon: "error"}},
 		{name: "Icon", args: Icon(ErrorIcon), want: options{icon: ErrorIcon}},
 		{name: "Icon", args: Icon("error"), want: options{icon: "error"}},
+		{name: "Attach", args: Attach(12345), want: options{attach: 12345}},
+		{name: "Attach", args: Attach("Terminal"), want: options{attach: "Terminal"}},
+		{name: "Modal", args: Modal(), want: options{modal: true}},
 
 		// Message options
 		{name: "NoWrap", args: NoWrap(), want: options{noWrap: true}},