diff --git a/instructions.json b/instructions.json
index d75b837d..53a0707c 100644
--- a/instructions.json
+++ b/instructions.json
@@ -166,5 +166,8 @@
   },
   "facingMode": {
     "description": "モバイルカメラのフロント/バックを切り替えます。"
+  },
+  "changeAllRecvStream": {
+    "description": "サイマルキャストで受信中の全てのストリームの rid を操作します。"
   }
 }
diff --git a/src/components/Video/LocalVideo.tsx b/src/components/Video/LocalVideo.tsx
index fafef222..64254d84 100644
--- a/src/components/Video/LocalVideo.tsx
+++ b/src/components/Video/LocalVideo.tsx
@@ -2,6 +2,7 @@ import React, { useState } from 'react'
 
 import { useAppSelector } from '@/app/hooks'
 
+import { TooltipFormLabel } from '../DevtoolsPane/TooltipFormLabel'
 import { ConnectionStatusBar } from './ConnectionStatusBar'
 import { RequestRtpStreamButton } from './RequestRtpStreamButton'
 import { RequestSpotlightRidButton } from './RequestSpotlightRidButton'
@@ -79,6 +80,7 @@ export const LocalVideo: React.FC = () => {
           simulcast === 'true' &&
           role !== 'sendonly' ? (
             <div className="d-flex align-items-center mb-1 video-status-inner">
+              <TooltipFormLabel kind="changeAllRecvStream">change all:</TooltipFormLabel>
               <RequestRtpStreamButton rid={'r0'} />
               <RequestRtpStreamButton rid={'r1'} />
               <RequestRtpStreamButton rid={'r2'} />