diff --git a/src/api/courses.api.ts b/src/api/courses.api.ts
index 4675a66..4319d54 100644
--- a/src/api/courses.api.ts
+++ b/src/api/courses.api.ts
@@ -49,6 +49,7 @@ import type {
   GetLearningPathResponse,
   GetHumanLanguageLessonsResponse,
   GetHumanLanguageHierarchyResponse,
+  CreateHumanLanguageLessonRequest,
   GetSubCourseEntryAssessmentResponse,
   ReorderItem,
   GetRatingsResponse,
@@ -296,6 +297,9 @@ export const getHumanLanguageLessonsByCourse = (courseId: number, cefr_level: st
 export const getHumanLanguageHierarchy = () =>
   http.get<GetHumanLanguageHierarchyResponse>("/course-management/human-language/hierarchy")
 
+export const createHumanLanguageLesson = (data: CreateHumanLanguageLessonRequest) =>
+  http.post("/course-management/human-language/lessons", data)
+
 export const getSubCourseEntryAssessment = (subCourseId: number) =>
   http.get<GetSubCourseEntryAssessmentResponse>(
     `/question-sets/sub-courses/${subCourseId}/entry-assessment`,
diff --git a/src/pages/content-management/HumanLanguagePage.tsx b/src/pages/content-management/HumanLanguagePage.tsx
index 23732c3..60d4dff 100644
--- a/src/pages/content-management/HumanLanguagePage.tsx
+++ b/src/pages/content-management/HumanLanguagePage.tsx
@@ -1,11 +1,12 @@
 import { useEffect, useMemo, useState } from "react"
 import { Link } from "react-router-dom"
-import { BookOpen, ChevronDown, ChevronRight, Languages } from "lucide-react"
+import { BookOpen, ChevronDown, ChevronRight, Languages, Loader2, Plus } from "lucide-react"
 import { Card, CardContent, CardHeader, CardTitle } from "../../components/ui/card"
 import { Button } from "../../components/ui/button"
 import { SpinnerIcon } from "../../components/ui/spinner-icon"
-import { getHumanLanguageHierarchy } from "../../api/courses.api"
+import { createHumanLanguageLesson, getHumanLanguageHierarchy } from "../../api/courses.api"
 import type { HumanLanguageCourseTree, HumanLanguageSubCategoryTree } from "../../types/course.types"
+import { toast } from "sonner"
 
 const CEFR_LEVELS = ["A1", "A2", "A3", "B1", "B2", "B3", "C1", "C2", "C3"] as const
 type CefrLevel = (typeof CEFR_LEVELS)[number]
@@ -18,20 +19,30 @@ export function HumanLanguagePage() {
   const [selectedCourseId, setSelectedCourseId] = useState<number | "ALL">("ALL")
   const [selectedLevel, setSelectedLevel] = useState<CefrLevel | "ALL">("ALL")
   const [collapsedLevels, setCollapsedLevels] = useState<CefrLevel[]>([])
+  const [creatingKey, setCreatingKey] = useState<string | null>(null)
+
+  const loadHierarchy = async () => {
+    setLoading(true)
+    try {
+      const res = await getHumanLanguageHierarchy()
+      const data = res.data?.data
+      setCategoryId(data?.category_id ?? null)
+      setSubCategories(data?.sub_categories ?? [])
+    } finally {
+      setLoading(false)
+    }
+  }
 
   useEffect(() => {
-    const loadHierarchy = async () => {
+    const run = async () => {
       setLoading(true)
       try {
-        const res = await getHumanLanguageHierarchy()
-        const data = res.data?.data
-        setCategoryId(data?.category_id ?? null)
-        setSubCategories(data?.sub_categories ?? [])
+        await loadHierarchy()
       } finally {
         setLoading(false)
       }
     }
-    loadHierarchy().catch(() => undefined)
+    run().catch(() => undefined)
   }, [])
 
   const filteredSubCategories = useMemo(
@@ -58,6 +69,84 @@ export function HumanLanguagePage() {
     setCollapsedLevels((prev) => (prev.includes(level) ? prev.filter((l) => l !== level) : [...prev, level]))
   }
 
+  const parseModuleNumber = (title: string): number | null => {
+    const match = title.match(/module-(\d+)/i)
+    if (!match) return null
+    const value = Number(match[1])
+    return Number.isFinite(value) ? value : null
+  }
+
+  const parseSubModuleNumber = (title: string): { module: number; sub: number } | null => {
+    const match = title.match(/(?:sub-)?module-(\d+)\.(\d+)/i)
+    if (!match) return null
+    const module = Number(match[1])
+    const sub = Number(match[2])
+    if (!Number.isFinite(module) || !Number.isFinite(sub)) return null
+    return { module, sub }
+  }
+
+  const handleCreateModule = async (courseId: number, level: string, modules: { title: string }[]) => {
+    const key = `module-${courseId}-${level}`
+    setCreatingKey(key)
+    try {
+      const maxExisting = modules
+        .map((m) => parseModuleNumber(m.title))
+        .filter((v): v is number => v !== null)
+        .reduce((acc, n) => Math.max(acc, n), 0)
+      const next = maxExisting + 1
+      const title = `Module-${next}`
+      await createHumanLanguageLesson({
+        course_id: courseId,
+        cefr_level: level,
+        title,
+        description: `${level} ${title}`,
+      })
+      toast.success(`${title} created`)
+      await loadHierarchy()
+    } catch (error) {
+      console.error("Failed to create module:", error)
+      toast.error("Failed to create module")
+    } finally {
+      setCreatingKey(null)
+    }
+  }
+
+  const handleCreateSubModule = async (
+    courseId: number,
+    level: string,
+    moduleTitle: string,
+    existingSubModules: { title: string }[],
+  ) => {
+    const moduleNo = parseModuleNumber(moduleTitle)
+    if (!moduleNo) {
+      toast.error("Cannot derive module number from title")
+      return
+    }
+    const key = `submodule-${courseId}-${level}-${moduleNo}`
+    setCreatingKey(key)
+    try {
+      const maxExisting = existingSubModules
+        .map((s) => parseSubModuleNumber(s.title))
+        .filter((v): v is { module: number; sub: number } => v !== null && v.module === moduleNo)
+        .reduce((acc, item) => Math.max(acc, item.sub), 0)
+      const next = maxExisting + 1
+      const title = `Module-${moduleNo}.${next}`
+      await createHumanLanguageLesson({
+        course_id: courseId,
+        cefr_level: level,
+        title,
+        description: `${level} ${title}`,
+      })
+      toast.success(`Sub-module ${moduleNo}.${next} created`)
+      await loadHierarchy()
+    } catch (error) {
+      console.error("Failed to create sub-module:", error)
+      toast.error("Failed to create sub-module")
+    } finally {
+      setCreatingKey(null)
+    }
+  }
+
   return (
     <div className="space-y-6">
       <div className="rounded-2xl border border-grayScale-200 bg-gradient-to-r from-white to-brand-50/30 p-5 shadow-sm">
@@ -178,14 +267,58 @@ export function HumanLanguagePage() {
                   ) : (
                     modulesByCourse.map((entry) => (
                       <div key={entry.course.course_id} className="space-y-2 rounded-xl border border-grayScale-200 bg-white p-3">
-                        <p className="text-sm font-semibold text-brand-700">{entry.course.course_name}</p>
+                        <div className="flex items-center justify-between gap-2">
+                          <p className="text-sm font-semibold text-brand-700">{entry.course.course_name}</p>
+                          <Button
+                            size="sm"
+                            variant="outline"
+                            onClick={() => handleCreateModule(entry.course.course_id, level, entry.modules)}
+                            disabled={creatingKey === `module-${entry.course.course_id}-${level}`}
+                          >
+                            {creatingKey === `module-${entry.course.course_id}-${level}` ? (
+                              <Loader2 className="h-3.5 w-3.5 animate-spin" />
+                            ) : (
+                              <Plus className="h-3.5 w-3.5" />
+                            )}
+                            Add Module
+                          </Button>
+                        </div>
                         <div className="space-y-2">
                           {entry.modules.map((module) => (
                             <div key={module.id} className="rounded-lg border border-grayScale-100 bg-grayScale-50/60 p-3">
-                              <p className="text-sm font-semibold text-grayScale-900">Module: {module.title}</p>
+                              <div className="flex items-center justify-between gap-2">
+                                <p className="text-sm font-semibold text-grayScale-900">Module: {module.title}</p>
+                                <Button
+                                  size="sm"
+                                  variant="outline"
+                                  onClick={() =>
+                                    handleCreateSubModule(entry.course.course_id, level, module.title, module.sub_modules)
+                                  }
+                                  disabled={creatingKey === `submodule-${entry.course.course_id}-${level}-${parseModuleNumber(module.title) ?? 0}`}
+                                >
+                                  {creatingKey === `submodule-${entry.course.course_id}-${level}-${parseModuleNumber(module.title) ?? 0}` ? (
+                                    <Loader2 className="h-3.5 w-3.5 animate-spin" />
+                                  ) : (
+                                    <Plus className="h-3.5 w-3.5" />
+                                  )}
+                                  Add Sub-module
+                                </Button>
+                              </div>
                               {module.sub_modules.map((subModule) => (
                                 <div key={subModule.id} className="mt-2 rounded-md border border-grayScale-100 bg-white p-2">
-                                  <p className="text-xs font-semibold text-grayScale-700">Sub-module: {subModule.title}</p>
+                                  <div className="flex flex-wrap items-center justify-between gap-2">
+                                    <p className="text-xs font-semibold text-grayScale-700">Sub-module: {subModule.title}</p>
+                                    {categoryId ? (
+                                      <div className="flex gap-2">
+                                        <Link to={`/content/category/${categoryId}/courses/${entry.course.course_id}/sub-courses/${subModule.id}`}>
+                                          <Button size="sm" variant="outline">Manage lesson videos/audio</Button>
+                                        </Link>
+                                        <Link to={`/content/category/${categoryId}/courses/${entry.course.course_id}/sub-courses/${subModule.id}/add-practice`}>
+                                          <Button size="sm">Add practice/audio questions</Button>
+                                        </Link>
+                                      </div>
+                                    ) : null}
+                                  </div>
                                   <div className="mt-2 flex flex-wrap gap-2">
                                     {subModule.videos.map((video) => (
                                       <div key={video.id} className="inline-flex items-center gap-2 rounded-md bg-grayScale-50 px-2 py-1 text-xs text-grayScale-700">
diff --git a/src/types/course.types.ts b/src/types/course.types.ts
index 24c4684..79cf4c3 100644
--- a/src/types/course.types.ts
+++ b/src/types/course.types.ts
@@ -742,6 +742,15 @@ export interface GetHumanLanguageHierarchyResponse {
   metadata: unknown
 }
 
+export interface CreateHumanLanguageLessonRequest {
+  course_id: number
+  title: string
+  description?: string
+  thumbnail?: string
+  display_order?: number
+  cefr_level: string
+}
+
 export interface GetSubCourseEntryAssessmentResponse {
   message: string
   data: QuestionSet | null