diff --git a/src/main/java/com/kfmanager/ui/FilePanelTab.java b/src/main/java/com/kfmanager/ui/FilePanelTab.java
index fbca050..7932c2a 100644
--- a/src/main/java/com/kfmanager/ui/FilePanelTab.java
+++ b/src/main/java/com/kfmanager/ui/FilePanelTab.java
@@ -972,11 +972,14 @@ public class FilePanelTab extends JPanel {
         JMenuItem props = new JMenuItem("Properties");
         props.addActionListener(ae -> {
             try {
+                Window parent = SwingUtilities.getWindowAncestor(FilePanelTab.this);
                 File f = item.getFile();
-                String info = String.format("Name: %s\nPath: %s\nSize: %s\nModified: %s\nReadable: %b, Writable: %b, Executable: %b",
-                        f.getName(), f.getAbsolutePath(), item.isDirectory() ? "<DIR>" : formatSize(f.length()),
-                        new java.util.Date(f.lastModified()).toString(), f.canRead(), f.canWrite(), f.canExecute());
-                JOptionPane.showMessageDialog(FilePanelTab.this, info, "Properties", JOptionPane.INFORMATION_MESSAGE);
+                if (f != null) {
+                    PropertiesDialog dialog = new PropertiesDialog(parent, f);
+                    dialog.setVisible(true);
+                    // Refresh current directory after potential attribute changes
+                    loadDirectory(getCurrentDirectory());
+                }
             } catch (Exception ex) {
                 try { JOptionPane.showMessageDialog(FilePanelTab.this, "Cannot show properties: " + ex.getMessage()); } catch (Exception ignore) {}
             }
diff --git a/src/main/java/com/kfmanager/ui/PropertiesDialog.java b/src/main/java/com/kfmanager/ui/PropertiesDialog.java
new file mode 100644
index 0000000..738cb7b
--- /dev/null
+++ b/src/main/java/com/kfmanager/ui/PropertiesDialog.java
@@ -0,0 +1,350 @@
+package com.kfmanager.ui;
+
+import javax.swing.*;
+import javax.swing.border.EmptyBorder;
+import java.awt.*;
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.*;
+import java.nio.file.attribute.*;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.HashSet;
+import java.util.Set;
+
+public class PropertiesDialog extends JDialog {
+    private final File file;
+    private final Path path;
+    
+    // Attributes Tab components
+    private JCheckBox[][] permChecks; // [Owner, Group, Other][Read, Write, Execute]
+    private JTextField octalField;
+    private JTextField symbolicField;
+    private JCheckBox suidCheck, sgidCheck, stickyCheck;
+    private JCheckBox recursiveCheck;
+    private JTextField ownerField, groupField;
+
+    public PropertiesDialog(Window owner, File file) {
+        super(owner, "Properties", ModalityType.APPLICATION_MODAL);
+        this.file = file;
+        this.path = file.toPath();
+        
+        initComponents();
+        
+        pack();
+        setMinimumSize(new Dimension(500, 550));
+        setLocationRelativeTo(owner);
+    }
+
+    private void initComponents() {
+        setLayout(new BorderLayout());
+
+        JTabbedPane tabbedPane = new JTabbedPane();
+        tabbedPane.addTab("Properties", buildPropertiesPanel());
+        tabbedPane.addTab("Attributes", buildAttributesPanel());
+
+        add(tabbedPane, BorderLayout.CENTER);
+
+        JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT));
+        JButton okButton = new JButton("OK");
+        JButton cancelButton = new JButton("Cancel");
+
+        okButton.addActionListener(e -> {
+            if (applyChanges()) {
+                dispose();
+            }
+        });
+        cancelButton.addActionListener(e -> dispose());
+
+        buttonPanel.add(okButton);
+        buttonPanel.add(cancelButton);
+        add(buttonPanel, BorderLayout.SOUTH);
+    }
+
+    private JPanel buildPropertiesPanel() {
+        JPanel panel = new JPanel(new GridBagLayout());
+        panel.setBorder(new EmptyBorder(20, 20, 20, 20));
+        GridBagConstraints gbc = new GridBagConstraints();
+        gbc.fill = GridBagConstraints.HORIZONTAL;
+        gbc.insets = new Insets(5, 5, 5, 5);
+
+        int row = 0;
+        addInfoRow(panel, gbc, row++, "Name:", file.getName());
+        addInfoRow(panel, gbc, row++, "Path:", file.getAbsolutePath());
+        
+        String sizeStr = file.isDirectory() ? "Directory" : formatSize(file.length());
+        addInfoRow(panel, gbc, row++, "Size:", sizeStr);
+        
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+        addInfoRow(panel, gbc, row++, "Modified:", sdf.format(new Date(file.lastModified())));
+
+        return panel;
+    }
+
+    private JPanel buildAttributesPanel() {
+        JPanel panel = new JPanel(new GridBagLayout());
+        panel.setBorder(new EmptyBorder(15, 15, 15, 15));
+        GridBagConstraints gbc = new GridBagConstraints();
+        gbc.fill = GridBagConstraints.HORIZONTAL;
+        gbc.insets = new Insets(5, 5, 5, 5);
+
+        int row = 0;
+
+        // File name display
+        JLabel nameLabel = new JLabel("File name");
+        gbc.gridx = 0; gbc.gridy = row; gbc.weightx = 0;
+        panel.add(nameLabel, gbc);
+        
+        JLabel fileNameValue = new JLabel(file.getName());
+        gbc.gridx = 1; gbc.gridy = row; gbc.weightx = 1; gbc.gridwidth = 3;
+        panel.add(fileNameValue, gbc);
+        gbc.gridwidth = 1;
+        row++;
+
+        panel.add(new JSeparator(), new GridBagConstraints(0, row++, 4, 1, 1.0, 0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL, new Insets(10, 0, 10, 0), 0, 0));
+
+        // Header: Read, Write, Execute
+        gbc.gridy = row;
+        gbc.weightx = 0;
+        String[] titles = {"", "Read", "Write", "Execute"};
+        for (int i = 1; i < titles.length; i++) {
+            gbc.gridx = i;
+            panel.add(new JLabel(titles[i], SwingConstants.CENTER), gbc);
+        }
+        row++;
+
+        // Rows: Owner, Group, Other
+        String[] labels = {"Owner", "Group", "Other"};
+        permChecks = new JCheckBox[3][3];
+        
+        Set<PosixFilePermission> perms = new HashSet<>();
+        String ownerName = "";
+        String groupName = "";
+        try {
+            PosixFileAttributes attrs = Files.readAttributes(path, PosixFileAttributes.class);
+            perms = attrs.permissions();
+            ownerName = attrs.owner().getName();
+            groupName = attrs.group().getName();
+        } catch (Exception ignore) {
+            // Fallback for non-posix systems or permission issues
+            if (file.canRead()) perms.add(PosixFilePermission.OWNER_READ);
+            if (file.canWrite()) perms.add(PosixFilePermission.OWNER_WRITE);
+            if (file.canExecute()) perms.add(PosixFilePermission.OWNER_EXECUTE);
+        }
+
+        for (int i = 0; i < 3; i++) {
+            gbc.gridx = 0; gbc.gridy = row;
+            panel.add(new JLabel(labels[i]), gbc);
+            
+            for (int j = 0; j < 3; j++) {
+                permChecks[i][j] = new JCheckBox();
+                permChecks[i][j].setHorizontalAlignment(SwingConstants.CENTER);
+                gbc.gridx = j + 1;
+                panel.add(permChecks[i][j], gbc);
+                
+                // Set initial state
+                permChecks[i][j].setSelected(hasPermission(perms, i, j));
+                permChecks[i][j].addActionListener(e -> updateOctalAndSymbolic());
+            }
+            row++;
+        }
+
+        panel.add(new JSeparator(), new GridBagConstraints(0, row++, 4, 1, 1.0, 0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL, new Insets(10, 0, 10, 0), 0, 0));
+
+        // Special Bits
+        JPanel bitsPanel = new JPanel(new FlowLayout(FlowLayout.LEFT, 15, 0));
+        bitsPanel.add(new JLabel("Bits:"));
+        suidCheck = new JCheckBox("SUID");
+        sgidCheck = new JCheckBox("SGID");
+        stickyCheck = new JCheckBox("Sticky");
+        suidCheck.setEnabled(false); // Advanced bits usually require more than just Java basic API or are rare
+        sgidCheck.setEnabled(false);
+        stickyCheck.setEnabled(false);
+        bitsPanel.add(suidCheck);
+        bitsPanel.add(sgidCheck);
+        bitsPanel.add(stickyCheck);
+        
+        gbc.gridx = 0; gbc.gridy = row++; gbc.gridwidth = 4;
+        panel.add(bitsPanel, gbc);
+        gbc.gridwidth = 1;
+
+        // Octal and Symbolic
+        gbc.gridy = row;
+        gbc.gridx = 0;
+        panel.add(new JLabel("Octal:"), gbc);
+        
+        octalField = new JTextField(5);
+        gbc.gridx = 1;
+        panel.add(octalField, gbc);
+        
+        gbc.gridx = 2;
+        panel.add(new JLabel("Text:"), gbc);
+        
+        symbolicField = new JTextField(12);
+        symbolicField.setEditable(false);
+        gbc.gridx = 3;
+        panel.add(symbolicField, gbc);
+        row++;
+
+        // Owner/Group Section
+        JPanel ownerGroupPanel = new JPanel(new GridBagLayout());
+        ownerGroupPanel.setBorder(BorderFactory.createTitledBorder("Owner"));
+        GridBagConstraints ogbc = new GridBagConstraints();
+        ogbc.fill = GridBagConstraints.HORIZONTAL;
+        ogbc.insets = new Insets(2, 5, 2, 5);
+        
+        ogbc.gridx = 0; ogbc.gridy = 0;
+        ownerGroupPanel.add(new JLabel("Owner"), ogbc);
+        ownerField = new JTextField(ownerName);
+        ownerField.setEditable(false);
+        ogbc.gridx = 1; ogbc.weightx = 1.0;
+        ownerGroupPanel.add(ownerField, ogbc);
+        
+        ogbc.gridx = 0; ogbc.gridy = 1;
+        ownerGroupPanel.add(new JLabel("Group"), ogbc);
+        groupField = new JTextField(groupName);
+        groupField.setEditable(false);
+        ogbc.gridx = 1;
+        ownerGroupPanel.add(groupField, ogbc);
+        
+        gbc.gridx = 0; gbc.gridy = row++; gbc.gridwidth = 4;
+        panel.add(ownerGroupPanel, gbc);
+        gbc.gridwidth = 1;
+
+        // Recursive
+        recursiveCheck = new JCheckBox("Recursive");
+        recursiveCheck.setEnabled(file.isDirectory());
+        gbc.gridx = 0; gbc.gridy = row++; gbc.gridwidth = 4;
+        panel.add(recursiveCheck, gbc);
+
+        updateOctalAndSymbolic();
+        
+        // Listener for octal field to update checkboxes
+        octalField.addActionListener(e -> updateFromOctal());
+
+        return panel;
+    }
+
+    private boolean hasPermission(Set<PosixFilePermission> perms, int userIdx, int permIdx) {
+        PosixFilePermission p = getPermission(userIdx, permIdx);
+        return p != null && perms.contains(p);
+    }
+
+    private PosixFilePermission getPermission(int userIdx, int permIdx) {
+        if (userIdx == 0) { // Owner
+            if (permIdx == 0) return PosixFilePermission.OWNER_READ;
+            if (permIdx == 1) return PosixFilePermission.OWNER_WRITE;
+            if (permIdx == 2) return PosixFilePermission.OWNER_EXECUTE;
+        } else if (userIdx == 1) { // Group
+            if (permIdx == 0) return PosixFilePermission.GROUP_READ;
+            if (permIdx == 1) return PosixFilePermission.GROUP_WRITE;
+            if (permIdx == 2) return PosixFilePermission.GROUP_EXECUTE;
+        } else if (userIdx == 2) { // Other
+            if (permIdx == 0) return PosixFilePermission.OTHERS_READ;
+            if (permIdx == 1) return PosixFilePermission.OTHERS_WRITE;
+            if (permIdx == 2) return PosixFilePermission.OTHERS_EXECUTE;
+        }
+        return null;
+    }
+
+    private void updateOctalAndSymbolic() {
+        int octal = 0;
+        if (permChecks[0][0].isSelected()) octal += 0400;
+        if (permChecks[0][1].isSelected()) octal += 0200;
+        if (permChecks[0][2].isSelected()) octal += 0100;
+        if (permChecks[1][0].isSelected()) octal += 0040;
+        if (permChecks[1][1].isSelected()) octal += 0020;
+        if (permChecks[1][2].isSelected()) octal += 0010;
+        if (permChecks[2][0].isSelected()) octal += 0004;
+        if (permChecks[2][1].isSelected()) octal += 0002;
+        if (permChecks[2][2].isSelected()) octal += 0001;
+
+        octalField.setText(String.format("%03o", octal));
+        
+        StringBuilder sb = new StringBuilder();
+        sb.append(file.isDirectory() ? 'd' : '-');
+        sb.append(permChecks[0][0].isSelected() ? 'r' : '-');
+        sb.append(permChecks[0][1].isSelected() ? 'w' : '-');
+        sb.append(permChecks[0][2].isSelected() ? 'x' : '-');
+        sb.append(permChecks[1][0].isSelected() ? 'r' : '-');
+        sb.append(permChecks[1][1].isSelected() ? 'w' : '-');
+        sb.append(permChecks[1][2].isSelected() ? 'x' : '-');
+        sb.append(permChecks[2][0].isSelected() ? 'r' : '-');
+        sb.append(permChecks[2][1].isSelected() ? 'w' : '-');
+        sb.append(permChecks[2][2].isSelected() ? 'x' : '-');
+        symbolicField.setText(sb.toString());
+    }
+
+    private void updateFromOctal() {
+        try {
+            int val = Integer.parseInt(octalField.getText(), 8);
+            permChecks[0][0].setSelected((val & 0400) != 0);
+            permChecks[0][1].setSelected((val & 0200) != 0);
+            permChecks[0][2].setSelected((val & 0100) != 0);
+            permChecks[1][0].setSelected((val & 0040) != 0);
+            permChecks[1][1].setSelected((val & 0020) != 0);
+            permChecks[1][2].setSelected((val & 0010) != 0);
+            permChecks[2][0].setSelected((val & 0004) != 0);
+            permChecks[2][1].setSelected((val & 0002) != 0);
+            permChecks[2][2].setSelected((val & 0001) != 0);
+            updateOctalAndSymbolic();
+        } catch (Exception ignore) {}
+    }
+
+    private boolean applyChanges() {
+        Set<PosixFilePermission> perms = new HashSet<>();
+        for (int i = 0; i < 3; i++) {
+            for (int j = 0; j < 3; j++) {
+                if (permChecks[i][j].isSelected()) {
+                    perms.add(getPermission(i, j));
+                }
+            }
+        }
+
+        try {
+            applyPermissions(path, perms, recursiveCheck.isSelected());
+            return true;
+        } catch (Exception ex) {
+            JOptionPane.showMessageDialog(this, "Failed to apply permissions: " + ex.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
+            return false;
+        }
+    }
+
+    private void applyPermissions(Path p, Set<PosixFilePermission> perms, boolean recursive) throws IOException {
+        try {
+            Files.setPosixFilePermissions(p, perms);
+        } catch (UnsupportedOperationException e) {
+            // Fallback for non-posix filesystems
+            File f = p.toFile();
+            f.setReadable(perms.contains(PosixFilePermission.OWNER_READ));
+            f.setWritable(perms.contains(PosixFilePermission.OWNER_WRITE));
+            f.setExecutable(perms.contains(PosixFilePermission.OWNER_EXECUTE));
+        }
+        
+        if (recursive && Files.isDirectory(p)) {
+            try (DirectoryStream<Path> stream = Files.newDirectoryStream(p)) {
+                for (Path entry : stream) {
+                    applyPermissions(entry, perms, true);
+                }
+            }
+        }
+    }
+
+    private void addInfoRow(JPanel panel, GridBagConstraints gbc, int row, String label, String value) {
+        gbc.gridx = 0; gbc.gridy = row; gbc.weightx = 0;
+        panel.add(new JLabel(label), gbc);
+        gbc.gridx = 1; gbc.weightx = 1.0;
+        JTextField textField = new JTextField(value);
+        textField.setEditable(false);
+        textField.setBorder(null);
+        textField.setOpaque(false);
+        panel.add(textField, gbc);
+    }
+
+    private String formatSize(long bytes) {
+        if (bytes < 1024) return bytes + " B";
+        int exp = (int) (Math.log(bytes) / Math.log(1024));
+        char pre = "KMGTPE".charAt(exp - 1);
+        return String.format("%.1f %cB (%d bytes)", bytes / Math.pow(1024, exp), pre, bytes);
+    }
+}
diff --git a/src/main/java/com/kfmanager/ui/SettingsDialog.java b/src/main/java/com/kfmanager/ui/SettingsDialog.java
index 1a40e2b..762e6de 100644
--- a/src/main/java/com/kfmanager/ui/SettingsDialog.java
+++ b/src/main/java/com/kfmanager/ui/SettingsDialog.java
@@ -178,10 +178,20 @@ public class SettingsDialog extends JDialog {
 
     private JPanel buildAppearancePanel() {
         JPanel p = new JPanel(new BorderLayout(8, 8));
-        JPanel grid = new JPanel(new GridLayout(4, 2, 8, 8));
+        JPanel grid = new JPanel(new GridBagLayout());
         grid.setBorder(BorderFactory.createEmptyBorder(12, 12, 12, 12));
+        
+        GridBagConstraints gbc = new GridBagConstraints();
+        gbc.fill = GridBagConstraints.HORIZONTAL;
+        gbc.insets = new Insets(4, 4, 4, 4);
+        gbc.weightx = 1.0;
+        
+        int row = 0;
 
-        grid.add(new JLabel("Application font:"));
+        // Application font
+        gbc.gridx = 0; gbc.gridy = row; gbc.weightx = 0.0;
+        grid.add(new JLabel("Application font:"), gbc);
+        
         appearanceFontBtn = new JButton(getFontDescription(config.getGlobalFont()));
         appearanceFontBtn.addActionListener(e -> {
             Font nf = FontChooserDialog.showDialog(this, config.getGlobalFont());
@@ -191,37 +201,54 @@ public class SettingsDialog extends JDialog {
                 if (onChange != null) onChange.run();
             }
         });
-        grid.add(appearanceFontBtn);
+        gbc.gridx = 1; gbc.gridy = row++; gbc.weightx = 1.0;
+        grid.add(appearanceFontBtn, gbc);
 
-        grid.add(new JLabel("Background color:"));
+        // Background color
+        gbc.gridx = 0; gbc.gridy = row; gbc.weightx = 0.0;
+        grid.add(new JLabel("Background color:"), gbc);
+        
         appearanceBgBtn = createColorButton(config.getBackgroundColor(), "Choose background color", c -> {
             config.setBackgroundColor(c);
             if (onChange != null) onChange.run();
         });
-        grid.add(appearanceBgBtn);
+        gbc.gridx = 1; gbc.gridy = row++; gbc.weightx = 1.0;
+        grid.add(appearanceBgBtn, gbc);
 
-        grid.add(new JLabel("Selection color:"));
+        // Selection color
+        gbc.gridx = 0; gbc.gridy = row; gbc.weightx = 0.0;
+        grid.add(new JLabel("Selection color:"), gbc);
+        
         appearanceSelBtn = createColorButton(config.getSelectionColor() != null ? config.getSelectionColor() : new Color(184, 207, 229), 
                 "Choose selection color", c -> {
             config.setSelectionColor(c);
             if (onChange != null) onChange.run();
         });
-        grid.add(appearanceSelBtn);
+        gbc.gridx = 1; gbc.gridy = row++; gbc.weightx = 1.0;
+        grid.add(appearanceSelBtn, gbc);
 
-        grid.add(new JLabel("Marked item color:"));
+        // Marked item color
+        gbc.gridx = 0; gbc.gridy = row; gbc.weightx = 0.0;
+        grid.add(new JLabel("Marked item color:"), gbc);
+        
         appearanceMarkBtn = createColorButton(config.getMarkedColor() != null ? config.getMarkedColor() : new Color(204, 153, 0), 
                 "Choose marked item color", c -> {
             config.setMarkedColor(c);
             if (onChange != null) onChange.run();
         });
-        grid.add(appearanceMarkBtn);
+        gbc.gridx = 1; gbc.gridy = row++; gbc.weightx = 1.0;
+        grid.add(appearanceMarkBtn, gbc);
 
-        grid.add(new JLabel("Folder icon color:"));
+        // Folder icon color
+        gbc.gridx = 0; gbc.gridy = row; gbc.weightx = 0.0;
+        grid.add(new JLabel("Folder icon color:"), gbc);
+        
         appearanceFolderBtn = createColorButton(config.getFolderColor(), "Choose folder icon color", c -> {
             config.setFolderColor(c);
             if (onChange != null) onChange.run();
         });
-        grid.add(appearanceFolderBtn);
+        gbc.gridx = 1; gbc.gridy = row++; gbc.weightx = 1.0;
+        grid.add(appearanceFolderBtn, gbc);
 
         p.add(grid, BorderLayout.NORTH);
         panels.put("Appearance", p);
@@ -262,10 +289,20 @@ public class SettingsDialog extends JDialog {
 
     private JPanel buildEditorPanel() {
         JPanel p = new JPanel(new BorderLayout(8, 8));
-        JPanel grid = new JPanel(new GridLayout(2, 2, 8, 8));
+        JPanel grid = new JPanel(new GridBagLayout());
         grid.setBorder(BorderFactory.createEmptyBorder(12, 12, 12, 12));
 
-        grid.add(new JLabel("Editor font:"));
+        GridBagConstraints gbc = new GridBagConstraints();
+        gbc.fill = GridBagConstraints.HORIZONTAL;
+        gbc.insets = new Insets(4, 4, 4, 4);
+        gbc.weightx = 1.0;
+        
+        int row = 0;
+
+        // Editor font
+        gbc.gridx = 0; gbc.gridy = row; gbc.weightx = 0.0;
+        grid.add(new JLabel("Editor font:"), gbc);
+        
         editorFontBtn = new JButton(getFontDescription(config.getEditorFont()));
         editorFontBtn.addActionListener(e -> {
             Font nf = FontChooserDialog.showDialog(this, config.getEditorFont());
@@ -275,9 +312,13 @@ public class SettingsDialog extends JDialog {
                 if (onChange != null) onChange.run();
             }
         });
-        grid.add(editorFontBtn);
+        gbc.gridx = 1; gbc.gridy = row++; gbc.weightx = 1.0;
+        grid.add(editorFontBtn, gbc);
+
         // External editor path
-        grid.add(new JLabel("External editor:"));
+        gbc.gridx = 0; gbc.gridy = row; gbc.weightx = 0.0;
+        grid.add(new JLabel("External editor:"), gbc);
+        
         JPanel extPanel = new JPanel(new BorderLayout(6, 0));
         externalEditorField = new JTextField(config.getExternalEditorPath());
         JButton browse = new JButton("Browse...");
@@ -295,11 +336,14 @@ public class SettingsDialog extends JDialog {
                 externalEditorField.setText(sel.getAbsolutePath());
                 config.setExternalEditorPath(sel.getAbsolutePath());
                 // config.saveConfig() will be called when OK is pressed
+                if (onChange != null) onChange.run();
             }
         });
         extPanel.add(externalEditorField, BorderLayout.CENTER);
         extPanel.add(browse, BorderLayout.EAST);
-        grid.add(extPanel);
+        
+        gbc.gridx = 1; gbc.gridy = row++; gbc.weightx = 1.0;
+        grid.add(extPanel, gbc);
 
         p.add(grid, BorderLayout.NORTH);
         panels.put("Editor", p);