diff --git a/CHANGELOG.md b/CHANGELOG.md
index f19601be..b11c80fe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Change Log
 
+## [7.7.0](https://github.com/dldevinc/paper-admin/tree/v7.7.0) - 2024-05-25
+
+### Features
+
+-   Migrate from the `multi.js` plugin for `<select multiple>` to the 
+    [paper-checkbox-tree](https://github.com/dldevinc/paper-checkbox-tree) plugin.
+-   `FilteredSelectMultiple` widget renamed to `AdminCheckboxTree`.
+
 ## [7.6.4](https://github.com/dldevinc/paper-admin/tree/v7.6.4) - 2023-12-31
 
 ### Features
diff --git a/README.md b/README.md
index a9692ff4..a0a34f7b 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,7 @@ Custom Django admin interface based on Bootstrap 4.
     -   [Fieldsets](#fieldsets)
     -   [Table rows](#table-rows)
     -   [Inline forms](#inline-forms)
+-   [Additional admin widgets](#Additional-admin-widgets)
 -   [Settings](#settings)
 -   [Additional References](#additional-References)
 
@@ -720,6 +721,76 @@ class TablularInlines(admin.TabularInline):
 ![image](https://user-images.githubusercontent.com/6928240/233794982-1ca7248a-dc54-48c4-aea2-44d0d973d083.png)
 ![image](https://user-images.githubusercontent.com/6928240/233795183-c056b82e-8b01-4f7d-9c09-65c0becbdc33.png)
 
+## Additional admin widgets
+
+You can customize the Django admin interface with a range of custom widgets 
+provided by the `paper-admin` package.
+
+### AdminSwitchInput
+
+The `AdminSwitchInput` widget provides a toggle switch input field for boolean fields 
+in the Django admin interface. It offers a more user-friendly way to interact 
+with boolean values compared to the default checkbox input.
+
+```python
+from django.contrib import admin
+from django.db import models
+from paper_admin.widgets import AdminSwitchInput
+from .models import MyModel
+
+class MyModelAdmin(admin.ModelAdmin):
+    formfield_overrides = {
+        models.BooleanField: {'widget': AdminSwitchInput},
+    }
+
+admin.site.register(MyModel, MyModelAdmin)
+```
+
+![image](https://github.com/dldevinc/paper-admin/assets/6928240/98a4c4f7-7e63-43a9-9c15-42093f078f4a)
+
+### AdminCheckboxSelectMultiple
+
+The `AdminCheckboxSelectMultiple` widget enhances multiple choice selection by rendering 
+options as checkboxes instead of a dropdown list. This is particularly useful for fields 
+with multiple choices or many-to-many relationships.
+
+![image](https://github.com/dldevinc/paper-admin/assets/6928240/754fc2ad-254d-4685-a3a2-b1f5149387fd)
+
+### AdminCheckboxTree
+
+The `AdminCheckboxTree` widget extends the functionality of the `FilteredSelectMultiple` 
+widget used with `filter_horizontal` or `filter_vertical` options in Django. It organizes 
+choices in a hierarchical tree structure, making it beneficial for dealing with hierarchical
+data like categories or permissions.
+
+```python
+# custom_users/admin.py
+
+from django.contrib import admin
+from django.contrib.auth.admin import UserAdmin
+from django.contrib.auth.forms import UserChangeForm
+from django.contrib.auth.models import User
+
+from paper_admin.admin.widgets import AdminCheckboxTree
+
+
+class CustomUserChangeForm(UserChangeForm):
+    class Meta:
+        widgets = {
+            "user_permissions": AdminCheckboxTree,
+        }
+
+
+class CustomUserAdmin(UserAdmin):
+    form = CustomUserChangeForm
+
+
+admin.site.unregister(User)
+admin.site.register(User, CustomUserAdmin)
+```
+
+![image](https://github.com/dldevinc/paper-admin/assets/6928240/0bda835d-4f6f-4523-8b47-53911e6a21ae)
+
 ## Settings
 
 `PAPER_FAVICON`<br>
diff --git a/package.json b/package.json
index 0f1ff646..b2b53536 100644
--- a/package.json
+++ b/package.json
@@ -41,6 +41,7 @@
     "mini-css-extract-plugin": "^2.9.0",
     "multi.js": "github:dldevinc/multi.js#f8c3e53",
     "multiselect": "^0.9.12",
+    "paper-checkbox-tree": "^0.1.10",
     "popper.js": "^1.16.1",
     "postcss": "^8.4.38",
     "postcss-loader": "^8.1.1",
diff --git a/paper_admin/admin/widgets.py b/paper_admin/admin/widgets.py
index 5928f987..2456bbcf 100644
--- a/paper_admin/admin/widgets.py
+++ b/paper_admin/admin/widgets.py
@@ -3,7 +3,8 @@
 
 __all__ = ["AdminIPInput", "AdminUUIDInput", "AdminSwitchInput", "AdminTextarea",
            "AdminForeignKeyRawIdWidget", "AdminManyToManyRawIdWidget", "AdminCheckboxInput",
-           "AdminRadioSelect", "AdminCheckboxSelectMultiple", "FilteredSelectMultiple"]
+           "AdminRadioSelect", "AdminCheckboxSelectMultiple", "FilteredSelectMultiple",
+           "AdminCheckboxTree"]
 
 
 class AdminIPInput(widgets.TextInput):
@@ -71,4 +72,18 @@ def __init__(self, attrs=None, choices=()):
 
 
 class FilteredSelectMultiple(widgets.SelectMultiple):
-    template_name = "django/forms/widgets/select_multiple.html"
+    template_name = "django/forms/widgets/filtered_select_multiple.html"
+
+
+class AdminCheckboxTree(widgets.SelectMultiple):
+    template_name = "django/forms/widgets/checkbox_tree.html"
+
+    def use_required_attribute(self, initial):
+        # Don't use the 'required' attribute because browser validation would
+        # require all checkboxes to be checked instead of at least one.
+        return False
+
+    def value_omitted_from_data(self, data, files, name):
+        # HTML checkboxes don't appear in POST data if not checked, so it's
+        # never known if the value is actually omitted.
+        return False
diff --git a/paper_admin/static/paper_admin/src/widgets/select-multiple-field/checkbox-tree.scss b/paper_admin/static/paper_admin/src/widgets/select-multiple-field/checkbox-tree.scss
new file mode 100644
index 00000000..989fa44a
--- /dev/null
+++ b/paper_admin/static/paper_admin/src/widgets/select-multiple-field/checkbox-tree.scss
@@ -0,0 +1,20 @@
+@import "css/env";
+
+.pct-tree {
+  width: 100%;
+  font-size: $input-font-size;
+  line-height: $input-line-height;
+  border-color: $input-border-color;
+  border-radius: $input-border-radius-lg;
+
+  @at-root .paper-widget--invalid & {
+    border-color: $input-invalid-border-color;
+    box-shadow: $input-invalid-box-shadow;
+  }
+}
+
+.pct-group__text {
+  color: $gray-700;
+  font-size: 16px;
+  font-weight: 500;
+}
diff --git a/paper_admin/static/paper_admin/src/widgets/select-multiple-field/index.scss b/paper_admin/static/paper_admin/src/widgets/select-multiple-field/filtered-select-multiple.scss
similarity index 100%
rename from paper_admin/static/paper_admin/src/widgets/select-multiple-field/index.scss
rename to paper_admin/static/paper_admin/src/widgets/select-multiple-field/filtered-select-multiple.scss
diff --git a/paper_admin/static/paper_admin/src/widgets/select-multiple-field/index.js b/paper_admin/static/paper_admin/src/widgets/select-multiple-field/index.js
index ec2f2df4..a67b0fec 100644
--- a/paper_admin/static/paper_admin/src/widgets/select-multiple-field/index.js
+++ b/paper_admin/static/paper_admin/src/widgets/select-multiple-field/index.js
@@ -1,16 +1,29 @@
 import XClass from "data-xclass";
+import CheckboxTree from "paper-checkbox-tree";
 import multi from "multi.js/dist/multi-es6.min.js";
 
 // CSS
 import "multi.js/src/multi.css";
-import "./index.scss";
+import "./filtered-select-multiple.scss";
 
-XClass.register("select-multiple-field", {
+import "paper-checkbox-tree/dist/style.css";
+import "./checkbox-tree.scss";
+
+XClass.register("filtered-select-multiple", {
     init: function (element) {
         const select = element.querySelector("select");
         select &&
-            multi(select, {
-                hide_empty_groups: true
-            });
+        multi(select, {
+            hide_empty_groups: true
+        });
+    }
+});
+
+XClass.register("checkbox-tree", {
+    init: function (element) {
+        const select = element.querySelector("select");
+        select && new CheckboxTree(select, {
+            groupAllOptions: true
+        });
     }
 });
diff --git a/paper_admin/templates/django/forms/widgets/checkbox_tree.html b/paper_admin/templates/django/forms/widgets/checkbox_tree.html
new file mode 100644
index 00000000..5c1047d0
--- /dev/null
+++ b/paper_admin/templates/django/forms/widgets/checkbox_tree.html
@@ -0,0 +1,19 @@
+<div class="select-multiple-field" data-xclass="checkbox-tree">
+  <select name="{{ widget.name }}" {% include "django/forms/widgets/attrs.html" %}>
+    {% for group_name, group_choices, group_index in widget.optgroups %}
+      {% if group_name %}
+        <optgroup label="{{ group_name }}">
+      {% endif %}
+
+      {% for option in group_choices %}
+        {% with widget=option %}
+          {% include option.template_name %}
+        {% endwith %}
+      {% endfor %}
+
+      {% if group_name %}
+        </optgroup>
+      {% endif %}
+    {% endfor %}
+  </select>
+</div>
diff --git a/paper_admin/templates/django/forms/widgets/select_multiple.html b/paper_admin/templates/django/forms/widgets/filtered_select_multiple.html
similarity index 86%
rename from paper_admin/templates/django/forms/widgets/select_multiple.html
rename to paper_admin/templates/django/forms/widgets/filtered_select_multiple.html
index a762de42..8ecae602 100644
--- a/paper_admin/templates/django/forms/widgets/select_multiple.html
+++ b/paper_admin/templates/django/forms/widgets/filtered_select_multiple.html
@@ -1,4 +1,4 @@
-<div class="select-multiple-field" data-xclass="select-multiple-field">
+<div class="select-multiple-field" data-xclass="filtered-select-multiple">
   <select name="{{ widget.name }}" {% include "django/forms/widgets/attrs.html" %}>
     {% for group_name, group_choices, group_index in widget.optgroups %}
       {% if group_name %}
diff --git a/tests/app/admin/widgets.py b/tests/app/admin/widgets.py
index f533bb30..3845b156 100644
--- a/tests/app/admin/widgets.py
+++ b/tests/app/admin/widgets.py
@@ -1,9 +1,14 @@
 from dal import autocomplete
 from django import forms
 from django.contrib import admin
+from django.db import models
 from django.utils.translation import gettext_lazy as _
 
-from paper_admin.admin.widgets import AdminCheckboxSelectMultiple, AdminSwitchInput
+from paper_admin.admin.widgets import (
+    AdminCheckboxSelectMultiple,
+    AdminCheckboxTree,
+    AdminSwitchInput,
+)
 
 from ..models import Widgets
 
@@ -19,6 +24,7 @@ class Meta:
             "f_file_input": forms.FileInput,
             "f_hidden": forms.HiddenInput,
             "f_checkbox_m2m": AdminCheckboxSelectMultiple,
+            "f_checkbox_tree_m2m": AdminCheckboxTree,
             "dal_fk": autocomplete.ModelSelect2(
                 url="app:ac-tag"
             ),
@@ -83,7 +89,7 @@ class WidgetsAdmin(admin.ModelAdmin):
         (_("Many-to-Many"), {
             "tab": "related-fields",
             "fields": (
-                "f_m2m", "f_checkbox_m2m", "f_radio_m2m", "f_horizontal_m2m",
+                "f_m2m", "f_checkbox_m2m", "f_checkbox_tree_m2m", "f_horizontal_m2m", "f_radio_m2m",
             ),
         }),
         (_("Autocomplete"), {
diff --git a/tests/app/migrations/0009_auto_20240525_1004.py b/tests/app/migrations/0009_auto_20240525_1004.py
new file mode 100644
index 00000000..20b476d3
--- /dev/null
+++ b/tests/app/migrations/0009_auto_20240525_1004.py
@@ -0,0 +1,23 @@
+# Generated by Django 3.2.25 on 2024-05-25 10:04
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('app', '0008_alter_message_sender'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='widgets',
+            name='f_checkbox_tree_m2m',
+            field=models.ManyToManyField(blank=True, help_text='<code>ManyToManyField</code> with <code>AdminCheckboxTree</code> widget', related_name='_app_widgets_f_checkbox_tree_m2m_+', to='app.Tag', verbose_name='Checkbox Tree M2M'),
+        ),
+        migrations.AlterField(
+            model_name='widgets',
+            name='f_checkbox_m2m',
+            field=models.ManyToManyField(blank=True, help_text='<code>ManyToManyField</code> with <code>AdminCheckboxSelectMultiple</code> widget', related_name='_app_widgets_f_checkbox_m2m_+', to='app.Tag', verbose_name='Checkbox M2M'),
+        ),
+    ]
diff --git a/tests/app/models/widgets.py b/tests/app/models/widgets.py
index 881c872b..6b84ef7c 100644
--- a/tests/app/models/widgets.py
+++ b/tests/app/models/widgets.py
@@ -255,14 +255,14 @@ class Widgets(models.Model):
         verbose_name=_("Checkbox M2M"),
         related_name="+",
         blank=True,
-        help_text=_("<code>ManyToManyField</code> with <code>AdminCheckboxSelectMultiple</code>")
+        help_text=_("<code>ManyToManyField</code> with <code>AdminCheckboxSelectMultiple</code> widget")
     )
-    f_radio_m2m = models.ManyToManyField(
+    f_checkbox_tree_m2m = models.ManyToManyField(
         Tag,
-        verbose_name=_("Radio M2M"),
+        verbose_name=_("Checkbox Tree M2M"),
         related_name="+",
         blank=True,
-        help_text=_("Raw ID <code>ManyToManyField</code>")
+        help_text=_("<code>ManyToManyField</code> with <code>AdminCheckboxTree</code> widget")
     )
     f_horizontal_m2m = models.ManyToManyField(
         Tag,
@@ -271,6 +271,13 @@ class Widgets(models.Model):
         blank=True,
         help_text=_("Horizontal <code>ManyToManyField</code>")
     )
+    f_radio_m2m = models.ManyToManyField(
+        Tag,
+        verbose_name=_("Radio M2M"),
+        related_name="+",
+        blank=True,
+        help_text=_("Raw ID <code>ManyToManyField</code>")
+    )
 
     # Autocomplete
     f_ac_fk = models.ForeignKey(
diff --git a/tests/settings.py b/tests/settings.py
index 7ff5e520..811542e0 100644
--- a/tests/settings.py
+++ b/tests/settings.py
@@ -51,7 +51,8 @@
     "logentry_admin",
 
     "app",
-    "sortables"
+    "sortables",
+    "users"
 ]
 
 MIDDLEWARE = [
diff --git a/tests/users/__init__.py b/tests/users/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/users/admin.py b/tests/users/admin.py
new file mode 100644
index 00000000..b9e07fa6
--- /dev/null
+++ b/tests/users/admin.py
@@ -0,0 +1,21 @@
+from django.contrib import admin
+from django.contrib.auth.admin import UserAdmin
+from django.contrib.auth.forms import UserChangeForm
+from django.contrib.auth.models import User
+
+from paper_admin.admin.widgets import AdminCheckboxTree
+
+
+class CustomUserChangeForm(UserChangeForm):
+    class Meta:
+        widgets = {
+            "user_permissions": AdminCheckboxTree,
+        }
+
+
+class CustomUserAdmin(UserAdmin):
+    form = CustomUserChangeForm
+
+
+admin.site.unregister(User)
+admin.site.register(User, CustomUserAdmin)
diff --git a/yarn.lock b/yarn.lock
index de77b9cc..eb3d7d10 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4449,6 +4449,11 @@ p-try@^2.0.0:
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.2.0.tgz#cb2868540e313d61de58fafbe35ce9004d5540e6"
   integrity sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==
 
+paper-checkbox-tree@^0.1.10:
+  version "0.1.10"
+  resolved "https://registry.yarnpkg.com/paper-checkbox-tree/-/paper-checkbox-tree-0.1.10.tgz#b0239ed080cc80c070081e3318a1861de305a0d7"
+  integrity sha512-jiCCKqSvQd0Z4Qt1ky61u7wUyl1kN6FVijOpoDN1j9BedaObbYOV23JsiB2+a44Rzo5jKhtDfidCTC+A9KFDaw==
+
 param-case@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/param-case/-/param-case-3.0.4.tgz#7d17fe4aa12bde34d4a77d91acfb6219caad01c5"