diff --git a/web/app/components/datasets/documents/create-from-pipeline/index.tsx b/web/app/components/datasets/documents/create-from-pipeline/index.tsx
index f5e498b278..fc19058cca 100644
--- a/web/app/components/datasets/documents/create-from-pipeline/index.tsx
+++ b/web/app/components/datasets/documents/create-from-pipeline/index.tsx
@@ -1,7 +1,7 @@
 'use client'
 import { useCallback, useMemo, useRef, useState } from 'react'
 import DataSourceOptions from './data-source-options'
-import type { CrawlResultItem, CustomFile as File, FileIndexingEstimateResponse, FileItem } from '@/models/datasets'
+import type { CrawlResultItem, DocumentItem, CustomFile as File, FileIndexingEstimateResponse, FileItem } from '@/models/datasets'
 import LocalFile from '@/app/components/rag-pipeline/components/panel/test-run/data-source/local-file'
 import produce from 'immer'
 import { useProviderContextSelector } from '@/context/provider-context'
@@ -48,6 +48,9 @@ const TestRunPanel = () => {
 
   const isPreview = useRef(false)
   const formRef = useRef<any>(null)
+  const previewFile = useRef<DocumentItem>(fileList[0].file as DocumentItem)
+  const previewNotionPage = useRef<NotionPage>(notionPages[0])
+  const previewWebsitePage = useRef<CrawlResultItem>(websitePages[0])
 
   const { data: pipelineInfo, isFetching: isFetchingPipelineInfo } = usePublishedPipelineInfo(pipelineId || '')
 
@@ -132,7 +135,7 @@ const TestRunPanel = () => {
       return
     const datasourceInfoList: Record<string, any>[] = []
     if (datasource.type === DatasourceType.localFile) {
-      const { id, name, type, size, extension, mime_type } = fileList[0].file
+      const { id, name, type, size, extension, mime_type } = previewFile.current as File
       const documentInfo = {
         upload_file_id: id,
         name,
@@ -144,7 +147,7 @@ const TestRunPanel = () => {
       datasourceInfoList.push(documentInfo)
     }
     if (datasource.type === DatasourceType.onlineDocument) {
-      const { workspace_id, ...rest } = notionPages[0]
+      const { workspace_id, ...rest } = previewNotionPage.current
       const documentInfo = {
         workspace_id,
         page: rest,
@@ -154,7 +157,7 @@ const TestRunPanel = () => {
     if (datasource.type === DatasourceType.websiteCrawl) {
       const documentInfo = {
         job_id: websiteCrawlJobId,
-        result: websitePages[0],
+        result: previewWebsitePage.current,
       }
       datasourceInfoList.push(documentInfo)
     }
@@ -167,10 +170,10 @@ const TestRunPanel = () => {
       is_preview: true,
     }, {
       onSuccess: (res) => {
-        setEstimateData(res as FileIndexingEstimateResponse)
+        setEstimateData(res.data.outputs as FileIndexingEstimateResponse)
       },
     })
-  }, [datasource, fileList, notionPages, pipelineId, runPublishedPipeline, websiteCrawlJobId, websitePages])
+  }, [datasource, pipelineId, runPublishedPipeline, websiteCrawlJobId])
 
   const handleProcess = useCallback(async (data: Record<string, any>) => {
     if (!datasource)
@@ -231,14 +234,25 @@ const TestRunPanel = () => {
     formRef.current?.submit()
   }, [])
 
-  const onClickReset = useCallback(() => {
-    formRef.current?.reset()
-  }, [])
-
   const handleSubmit = useCallback((data: Record<string, any>) => {
     isPreview.current ? handlePreviewChunks(data) : handleProcess(data)
   }, [handlePreviewChunks, handleProcess])
 
+  const handlePreviewFileChange = useCallback((file: DocumentItem) => {
+    previewFile.current = file
+    onClickPreview()
+  }, [onClickPreview])
+
+  const handlePreviewNotionPageChange = useCallback((page: NotionPage) => {
+    previewNotionPage.current = page
+    onClickPreview()
+  }, [onClickPreview])
+
+  const handlePreviewWebsiteChange = useCallback((website: CrawlResultItem) => {
+    previewWebsitePage.current = website
+    onClickPreview()
+  }, [onClickPreview])
+
   if (isFetchingPipelineInfo) {
     return (
       <Loading type='app' />
@@ -312,7 +326,6 @@ const TestRunPanel = () => {
                 onProcess={onClickProcess}
                 onPreview={onClickPreview}
                 onSubmit={handleSubmit}
-                onReset={onClickReset}
                 onBack={handleBackStep}
               />
             )
@@ -353,6 +366,9 @@ const TestRunPanel = () => {
                 isPending={isPending}
                 estimateData={estimateData}
                 onPreview={onClickPreview}
+                handlePreviewFileChange={handlePreviewFileChange}
+                handlePreviewNotionPageChange={handlePreviewNotionPageChange}
+                handlePreviewWebsitePageChange={handlePreviewWebsiteChange}
               />
             )}
           </div>
diff --git a/web/app/components/datasets/documents/create-from-pipeline/preview/chunk-preview.tsx b/web/app/components/datasets/documents/create-from-pipeline/preview/chunk-preview.tsx
index 96ff4b4ccb..61779bd57b 100644
--- a/web/app/components/datasets/documents/create-from-pipeline/preview/chunk-preview.tsx
+++ b/web/app/components/datasets/documents/create-from-pipeline/preview/chunk-preview.tsx
@@ -26,6 +26,9 @@ type ChunkPreviewProps = {
   isPending: boolean
   estimateData: FileIndexingEstimateResponse | undefined
   onPreview: () => void
+  handlePreviewFileChange: (file: DocumentItem) => void
+  handlePreviewNotionPageChange: (page: NotionPage) => void
+  handlePreviewWebsitePageChange: (page: CrawlResultItem) => void
 }
 
 const ChunkPreview = ({
@@ -37,6 +40,9 @@ const ChunkPreview = ({
   isPending,
   estimateData,
   onPreview,
+  handlePreviewFileChange,
+  handlePreviewNotionPageChange,
+  handlePreviewWebsitePageChange,
 }: ChunkPreviewProps) => {
   const { t } = useTranslation()
   const currentDocForm = useDatasetDetailContextWithSelector(s => s.dataset?.doc_form)
@@ -58,6 +64,7 @@ const ChunkPreview = ({
               files={files as Array<Required<CustomFile>>}
               onChange={(selected) => {
                 setPreviewFile(selected)
+                handlePreviewFileChange(selected)
               }}
               value={previewFile}
             />
@@ -74,6 +81,7 @@ const ChunkPreview = ({
               onChange={(selected) => {
                 const selectedPage = notionPages.find(page => page.page_id === selected.id)
                 setPreviewNotionPage(selectedPage!)
+                handlePreviewNotionPageChange(selectedPage!)
               }}
               value={{
                 id: previewNotionPage?.page_id || '',
@@ -94,6 +102,7 @@ const ChunkPreview = ({
               onChange={(selected) => {
                 const selectedPage = websitePages.find(page => page.source_url === selected.id)
                 setPreviewWebsitePage(selectedPage!)
+                handlePreviewWebsitePageChange(selectedPage!)
               }}
               value={
                 {
@@ -113,7 +122,7 @@ const ChunkPreview = ({
           }
         </div>
       </PreviewHeader>}
-      className='relative flex h-full w-1/2 shrink-0 p-4 pr-0'
+      className='relative flex h-full w-full shrink-0'
       mainClassName='space-y-6'
     >
       {currentDocForm === ChunkingMode.qa && estimateData?.qa_preview && (
@@ -169,7 +178,7 @@ const ChunkPreview = ({
           )
         })
       )}
-      {!isIdle && (
+      {isIdle && (
         <div className='flex h-full w-full items-center justify-center'>
           <div className='flex flex-col items-center justify-center gap-3 pb-4'>
             <RiSearchEyeLine className='size-10 text-text-empty-state-icon' />
diff --git a/web/app/components/datasets/documents/create-from-pipeline/process-documents/options.tsx b/web/app/components/datasets/documents/create-from-pipeline/process-documents/form.tsx
similarity index 75%
rename from web/app/components/datasets/documents/create-from-pipeline/process-documents/options.tsx
rename to web/app/components/datasets/documents/create-from-pipeline/process-documents/form.tsx
index d4400dff77..b427a03dca 100644
--- a/web/app/components/datasets/documents/create-from-pipeline/process-documents/options.tsx
+++ b/web/app/components/datasets/documents/create-from-pipeline/process-documents/form.tsx
@@ -2,22 +2,25 @@ import { useAppForm } from '@/app/components/base/form'
 import BaseField from '@/app/components/base/form/form-scenarios/base/field'
 import type { BaseConfiguration } from '@/app/components/base/form/form-scenarios/base/types'
 import Toast from '@/app/components/base/toast'
-import { useImperativeHandle } from 'react'
+import { useCallback, useImperativeHandle } from 'react'
 import type { ZodSchema } from 'zod'
+import Header from './header'
 
 type OptionsProps = {
   initialData: Record<string, any>
   configurations: BaseConfiguration[]
   schema: ZodSchema
   onSubmit: (data: Record<string, any>) => void
+  onPreview: () => void
   ref: React.RefObject<any>
 }
 
-const Options = ({
+const Form = ({
   initialData,
   configurations,
   schema,
   onSubmit,
+  onPreview,
   ref,
 }: OptionsProps) => {
   const form = useAppForm({
@@ -48,24 +51,32 @@ const Options = ({
       submit: () => {
         form.handleSubmit()
       },
-      reset: () => {
-        form.reset()
-      },
-      isDirty: () => {
-        return form.state.isDirty
-      },
     }
   }, [form])
 
+  const handleReset = useCallback(() => {
+    form.reset()
+  }, [form])
+
   return (
     <form
-      className='w-full'
+      className='flex w-full flex-col rounded-lg border border-components-panel-border bg-components-panel-bg'
       onSubmit={(e) => {
         e.preventDefault()
         e.stopPropagation()
         form.handleSubmit()
       }}
     >
+      <form.Subscribe
+        selector={state => state.isDirty}
+        children={isDirty => (
+          <Header
+            onReset={handleReset}
+            resetDisabled={!isDirty}
+            onPreview={onPreview}
+          />
+        )}
+      />
       <div className='flex flex-col gap-3 border-t border-divider-subtle px-4 py-3'>
         {configurations.map((config, index) => {
           const FieldComponent = BaseField({
@@ -79,4 +90,4 @@ const Options = ({
   )
 }
 
-export default Options
+export default Form
diff --git a/web/app/components/datasets/documents/create-from-pipeline/process-documents/header.tsx b/web/app/components/datasets/documents/create-from-pipeline/process-documents/header.tsx
index f7d019b579..1ca9840a6a 100644
--- a/web/app/components/datasets/documents/create-from-pipeline/process-documents/header.tsx
+++ b/web/app/components/datasets/documents/create-from-pipeline/process-documents/header.tsx
@@ -5,13 +5,13 @@ import { RiSearchEyeLine } from '@remixicon/react'
 
 type HeaderProps = {
   onReset: () => void
-  disableReset?: boolean
+  resetDisabled: boolean
   onPreview?: () => void
 }
 
 const Header = ({
   onReset,
-  disableReset = true,
+  resetDisabled,
   onPreview,
 }: HeaderProps) => {
   const { t } = useTranslation()
@@ -21,7 +21,7 @@ const Header = ({
       <div className='system-sm-semibold-uppercase grow text-text-secondary'>
         {t('datasetPipeline.addDocuments.stepTwo.chunkSettings')}
       </div>
-      <Button variant='ghost' disabled={disableReset} onClick={onReset}>
+      <Button variant='ghost' disabled={resetDisabled} onClick={onReset}>
         {t('common.operation.reset')}
       </Button>
       <Button
diff --git a/web/app/components/datasets/documents/create-from-pipeline/process-documents/index.tsx b/web/app/components/datasets/documents/create-from-pipeline/process-documents/index.tsx
index 87d17866ae..3a3075fd05 100644
--- a/web/app/components/datasets/documents/create-from-pipeline/process-documents/index.tsx
+++ b/web/app/components/datasets/documents/create-from-pipeline/process-documents/index.tsx
@@ -1,15 +1,13 @@
 import { generateZodSchema } from '@/app/components/base/form/form-scenarios/base/utils'
 import { useConfigurations } from './hooks'
-import Options from './options'
+import Form from './form'
 import Actions from './actions'
-import Header from './header'
 
 type ProcessDocumentsProps = {
   dataSourceNodeId: string
   ref: React.RefObject<any>
   onProcess: () => void
   onPreview: () => void
-  onReset: () => void
   onSubmit: (data: Record<string, any>) => void
   onBack: () => void
 }
@@ -19,7 +17,6 @@ const ProcessDocuments = ({
   onProcess,
   onPreview,
   onSubmit,
-  onReset,
   onBack,
   ref,
 }: ProcessDocumentsProps) => {
@@ -28,20 +25,14 @@ const ProcessDocuments = ({
 
   return (
     <div className='flex flex-col gap-y-4 pt-4'>
-      <div className='flex flex-col rounded-lg border border-components-panel-border bg-components-panel-bg'>
-        <Header
-          onReset={onReset}
-          disableReset={!ref.current?.isDirty()}
-          onPreview={onPreview}
-        />
-        <Options
-          ref={ref}
-          initialData={initialData}
-          configurations={configurations}
-          schema={schema}
-          onSubmit={onSubmit}
-        />
-      </div>
+      <Form
+        ref={ref}
+        initialData={initialData}
+        configurations={configurations}
+        schema={schema}
+        onSubmit={onSubmit}
+        onPreview={onPreview}
+      />
       <Actions onBack={onBack} onProcess={onProcess} />
     </div>
   )