diff --git a/RimeWithWeasel/RimeWithWeasel.cpp b/RimeWithWeasel/RimeWithWeasel.cpp
index c33a6fe20..6399ce48d 100644
--- a/RimeWithWeasel/RimeWithWeasel.cpp
+++ b/RimeWithWeasel/RimeWithWeasel.cpp
@@ -296,6 +296,30 @@ void RimeWithWeaselHandler::SelectCandidateOnCurrentPage(size_t index, UINT sess
 	api->select_candidate_on_current_page(session_id, index);
 }
 
+bool RimeWithWeaselHandler::HighlightCandidateOnCurrentPage(size_t index, UINT session_id, EatLine eat)
+{
+	DLOG(INFO) << "highlight candidate on current page, session_id = " << session_id << ", index = " << index;
+	RimeApi* api = rime_get_api();
+	if(!api)
+		return false;
+	bool res = api->highlight_candidate_on_current_page(session_id, index);
+	_Respond(session_id, eat);
+	_UpdateUI(session_id);
+	return res;
+}
+
+bool RimeWithWeaselHandler::ChangePage(bool backward, UINT session_id, EatLine eat)
+{
+	DLOG(INFO) << "change page, session_id = " << session_id << (backward? "backward" : "foreward");
+	RimeApi* api = rime_get_api();
+	if(!api)
+		return false;
+	bool res = api->change_page(session_id, backward);
+	_Respond(session_id, eat);
+	_UpdateUI(session_id);
+	return res;
+}
+
 void RimeWithWeaselHandler::FocusIn(DWORD client_caps, UINT session_id)
 {
 	DLOG(INFO) << "Focus in: session_id = " << session_id << ", client_caps = " << client_caps;
diff --git a/WeaselIPC/WeaselClientImpl.cpp b/WeaselIPC/WeaselClientImpl.cpp
index 34a5d7392..04a5a3469 100644
--- a/WeaselIPC/WeaselClientImpl.cpp
+++ b/WeaselIPC/WeaselClientImpl.cpp
@@ -101,6 +101,22 @@ bool ClientImpl::SelectCandidateOnCurrentPage(size_t index)
 	return ret != 0;
 }
 
+bool ClientImpl::HighlightCandidateOnCurrentPage(size_t index)
+{
+	if(!_Active())
+		return false;
+	LRESULT ret = _SendMessage(WEASEL_IPC_HIGHLIGHT_CANDIDATE_ON_CURRENT_PAGE, index, session_id);
+	return ret != 0;
+}
+
+bool ClientImpl::ChangePage(bool backward)
+{
+	if(!_Active())
+		return false;
+	LRESULT ret = _SendMessage(WEASEL_IPC_CHANGE_PAGE, backward, session_id);
+	return ret != 0;
+}
+
 void ClientImpl::UpdateInputPosition(RECT const& rc)
 {
 	if (!_Active())
@@ -257,6 +273,16 @@ bool Client::SelectCandidateOnCurrentPage(size_t index)
 	return m_pImpl->SelectCandidateOnCurrentPage(index);
 }
 
+bool Client::HighlightCandidateOnCurrentPage(size_t index)
+{
+	return m_pImpl->HighlightCandidateOnCurrentPage(index);
+}
+
+bool Client::ChangePage(bool backward)
+{
+	return m_pImpl->ChangePage(backward);
+}
+
 void Client::UpdateInputPosition(RECT const& rc)
 {
 	m_pImpl->UpdateInputPosition(rc);
diff --git a/WeaselIPC/WeaselClientImpl.h b/WeaselIPC/WeaselClientImpl.h
index 27c5399c7..7c16d7c52 100644
--- a/WeaselIPC/WeaselClientImpl.h
+++ b/WeaselIPC/WeaselClientImpl.h
@@ -23,6 +23,8 @@ namespace weasel
 		bool CommitComposition();
 		bool ClearComposition();
 		bool SelectCandidateOnCurrentPage(size_t index);
+		bool HighlightCandidateOnCurrentPage(size_t index);
+		bool ChangePage(bool backward);
 		void UpdateInputPosition(RECT const& rc);
 		void FocusIn();
 		void FocusOut();
diff --git a/WeaselIPCServer/WeaselServerImpl.cpp b/WeaselIPCServer/WeaselServerImpl.cpp
index 90c6255df..a7c9cd75b 100644
--- a/WeaselIPCServer/WeaselServerImpl.cpp
+++ b/WeaselIPCServer/WeaselServerImpl.cpp
@@ -319,6 +319,32 @@ DWORD ServerImpl::OnSelectCandidateOnCurrentPage(WEASEL_IPC_COMMAND uMsg, DWORD
 	return 0;
 }
 
+DWORD ServerImpl::OnHighlightCandidateOnCurrentPage(WEASEL_IPC_COMMAND uMsg, DWORD wParam, DWORD lParam)
+{
+	if(m_pRequestHandler)
+	{
+		auto eat = [this](std::wstring &msg) -> bool {
+			*channel << msg;
+			return true;
+		};
+		m_pRequestHandler->HighlightCandidateOnCurrentPage(wParam, lParam, eat);
+	}
+	return 0;
+}
+
+DWORD ServerImpl::OnChangePage(WEASEL_IPC_COMMAND uMsg, DWORD wParam, DWORD lParam)
+{
+	if(m_pRequestHandler)
+	{
+		auto eat = [this](std::wstring &msg) -> bool {
+			*channel << msg;
+			return true;
+		};
+		m_pRequestHandler->ChangePage(wParam, lParam, eat);
+	}
+	return 0;
+}
+
 #define MAP_PIPE_MSG_HANDLE(__msg, __wParam, __lParam) {\
 auto lParam = __lParam;\
 auto wParam = __wParam;\
@@ -351,6 +377,8 @@ void ServerImpl::HandlePipeMessage(PipeMessage pipe_msg, _Resp resp)
 		PIPE_MSG_HANDLE(WEASEL_IPC_COMMIT_COMPOSITION, OnCommitComposition)
 		PIPE_MSG_HANDLE(WEASEL_IPC_CLEAR_COMPOSITION, OnClearComposition);
 		PIPE_MSG_HANDLE(WEASEL_IPC_SELECT_CANDIDATE_ON_CURRENT_PAGE, OnSelectCandidateOnCurrentPage);
+		PIPE_MSG_HANDLE(WEASEL_IPC_HIGHLIGHT_CANDIDATE_ON_CURRENT_PAGE, OnHighlightCandidateOnCurrentPage);
+		PIPE_MSG_HANDLE(WEASEL_IPC_CHANGE_PAGE, OnChangePage);
 		PIPE_MSG_HANDLE(WEASEL_IPC_TRAY_COMMAND, OnCommand);
 	END_MAP_PIPE_MSG_HANDLE(result);
 
diff --git a/WeaselIPCServer/WeaselServerImpl.h b/WeaselIPCServer/WeaselServerImpl.h
index b07bccd0f..d3973d622 100644
--- a/WeaselIPCServer/WeaselServerImpl.h
+++ b/WeaselIPCServer/WeaselServerImpl.h
@@ -53,6 +53,8 @@ namespace weasel
 		DWORD OnCommitComposition(WEASEL_IPC_COMMAND uMsg, DWORD wParam, DWORD lParam);
 		DWORD OnClearComposition(WEASEL_IPC_COMMAND uMsg, DWORD wParam, DWORD lParam);
 		DWORD OnSelectCandidateOnCurrentPage(WEASEL_IPC_COMMAND uMsg, DWORD wParam, DWORD lParam);
+		DWORD OnHighlightCandidateOnCurrentPage(WEASEL_IPC_COMMAND uMsg, DWORD wParam, DWORD lParam);
+		DWORD OnChangePage(WEASEL_IPC_COMMAND uMsg, DWORD wParam, DWORD lParam);
 
 	public:
 		ServerImpl();
diff --git a/WeaselTSF/CandidateList.cpp b/WeaselTSF/CandidateList.cpp
index 5df851593..d603a6fbb 100644
--- a/WeaselTSF/CandidateList.cpp
+++ b/WeaselTSF/CandidateList.cpp
@@ -422,39 +422,41 @@ void WeaselTSF::_SelectCandidateOnCurrentPage(size_t index)
 {
 	m_client.SelectCandidateOnCurrentPage(index);
 	// simulate a VK_SELECT presskey to get data back and DoEditSession
-  // the simulated keycode must be the one make TranslateKeycode Non-Zero return
-  // fix me: are there any better ways?
-  INPUT inputs[2];
-  inputs[0].type = INPUT_KEYBOARD;
-  inputs[0].ki = {VK_SELECT, 0,0,0,0};
-  inputs[1].type = INPUT_KEYBOARD;
-  inputs[1].ki = {VK_SELECT, 0,KEYEVENTF_KEYUP,0,0};
-  ::SendInput(sizeof(inputs) / sizeof(INPUT), inputs, sizeof(INPUT));
+	// the simulated keycode must be the one make TranslateKeycode Non-Zero return
+	// fix me: are there any better ways?
+	INPUT inputs[2];
+	inputs[0].type = INPUT_KEYBOARD;
+	inputs[0].ki = {VK_SELECT, 0,0,0,0};
+	inputs[1].type = INPUT_KEYBOARD;
+	inputs[1].ki = {VK_SELECT, 0,KEYEVENTF_KEYUP,0,0};
+	::SendInput(sizeof(inputs) / sizeof(INPUT), inputs, sizeof(INPUT));
 }
 
 void WeaselTSF::_HandleMousePageEvent( bool* const nextPage, bool* const scrollNextPage)
 {
-	// ToDo: if feature new api comes, replace the processes bellow
-	weasel::KeyEvent ke{ 0, 0 };
 	// from scrolling event
 	if ( scrollNextPage ) {
 		if(_cand->style().paging_on_scroll)
-			ke.keycode = *scrollNextPage ? ibus::Page_Down : ibus::Page_Up;
-		else
-		{
-			ke.keycode = *scrollNextPage ? ibus::Down : ibus::Up;
-			if(_cand->GetIsReposition())
-			{
-				if(ke.keycode == ibus::Up)
-					ke.keycode = ibus::Down;
-				else if(ke.keycode == ibus::Down)
-					ke.keycode = ibus::Up;
+			m_client.ChangePage(!(*scrollNextPage));
+		else {
+			UINT current_select = 0, cand_count = 0;
+			_cand->GetSelection(&current_select);
+			_cand->GetCount(&cand_count);
+			bool is_reposition = _cand->GetIsReposition();
+			int offset = *scrollNextPage ? 1 : -1;
+			offset = offset * (is_reposition ? -1 : 1);
+			int index = (int)current_select + offset;
+			if (index >= 0 && index < cand_count)
+				m_client.HighlightCandidateOnCurrentPage((size_t)index);
+			else {
+				KeyEvent ke{0, 0};
+				ke.keycode = (index < 0) ? ibus::Up : ibus::Down;
+				m_client.ProcessKeyEvent(ke);
 			}
 		}
 	} else {	// from click event
-			ke.keycode = *nextPage ? ibus::Page_Down : ibus::Page_Up;
+		m_client.ChangePage(!(*nextPage));
 	}
-	m_client.ProcessKeyEvent(ke);
 	_UpdateComposition(_pEditSessionContext);
 }
 
@@ -465,19 +467,7 @@ void WeaselTSF::_HandleMouseHoverEvent(const size_t index)
 
 	if(index != current_select)
 	{
-		// simuulate change current_select in librime
-		// maybe replace with new api in the future
-		weasel::KeyEvent ke{ 0, 0 };
-		ke.keycode = current_select < index ? ibus::Down : ibus::Up;
-		int inc = index > current_select ? 1 : -1;
-		if (_cand->GetIsReposition()) inc = -inc;
-		UINT gap = abs((INT)((INT)index - (INT)current_select));
-		for(UINT i=0; i < gap; i++)
-		{
-			m_client.ProcessKeyEvent(ke);
-		}
-		// simuulate change current_select end
-		_cand->SetSelection(current_select + inc * gap);
+		m_client.HighlightCandidateOnCurrentPage(index);
 		_UpdateComposition(_pEditSessionContext);
 	}
 }
diff --git a/include/RimeWithWeasel.h b/include/RimeWithWeasel.h
index 5f1d543f9..45ced7081 100644
--- a/include/RimeWithWeasel.h
+++ b/include/RimeWithWeasel.h
@@ -42,6 +42,8 @@ class RimeWithWeaselHandler :
 	virtual void CommitComposition(UINT session_id);
 	virtual void ClearComposition(UINT session_id);
 	virtual void SelectCandidateOnCurrentPage(size_t index, UINT session_id);
+	virtual bool HighlightCandidateOnCurrentPage(size_t index, UINT session_id, EatLine eat);
+	virtual bool ChangePage(bool backward, UINT session_id, EatLine eat);
 	virtual void FocusIn(DWORD param, UINT session_id);
 	virtual void FocusOut(DWORD param, UINT session_id);
 	virtual void UpdateInputPosition(RECT const& rc, UINT session_id);
diff --git a/include/WeaselIPC.h b/include/WeaselIPC.h
index 91b869009..9c12ef298 100644
--- a/include/WeaselIPC.h
+++ b/include/WeaselIPC.h
@@ -27,8 +27,10 @@ enum WEASEL_IPC_COMMAND
 	WEASEL_IPC_END_MAINTENANCE,
 	WEASEL_IPC_COMMIT_COMPOSITION,
 	WEASEL_IPC_CLEAR_COMPOSITION,
-	WEASEL_IPC_SELECT_CANDIDATE_ON_CURRENT_PAGE,
 	WEASEL_IPC_TRAY_COMMAND,
+	WEASEL_IPC_SELECT_CANDIDATE_ON_CURRENT_PAGE,
+	WEASEL_IPC_HIGHLIGHT_CANDIDATE_ON_CURRENT_PAGE,
+	WEASEL_IPC_CHANGE_PAGE,
 	WEASEL_IPC_LAST_COMMAND
 };
 
@@ -78,6 +80,8 @@ namespace weasel
 		virtual void CommitComposition(UINT session_id) {}
 		virtual void ClearComposition(UINT session_id) {}
 		virtual void SelectCandidateOnCurrentPage(size_t index, UINT session_id) {}
+		virtual bool HighlightCandidateOnCurrentPage(size_t index, UINT session_id, EatLine eat) {return false;}
+		virtual bool ChangePage(bool backward, UINT session_id, EatLine eat) {return false;}
 		virtual void FocusIn(DWORD param, UINT session_id) {}
 		virtual void FocusOut(DWORD param, UINT session_id) {}
 		virtual void UpdateInputPosition(RECT const& rc, UINT session_id) {}
@@ -135,6 +139,10 @@ namespace weasel
 		bool ClearComposition();
 		// 选择当前页面编号为index的候选
 		bool SelectCandidateOnCurrentPage(size_t index);
+		// 高亮当前页面编号为index的候选
+		bool HighlightCandidateOnCurrentPage(size_t index);
+		// 高亮当前页面编号为index的候选
+		bool ChangePage(bool backward);
 		// 更新输入位置
 		void UpdateInputPosition(RECT const& rc);
 		// 输入窗口获得焦点