diff --git a/src/components/mod-tools/ModToolsView.tsx b/src/components/mod-tools/ModToolsView.tsx
index d42381d..181eb0c 100644
--- a/src/components/mod-tools/ModToolsView.tsx
+++ b/src/components/mod-tools/ModToolsView.tsx
@@ -1,8 +1,9 @@
 import { AddLinkEventTracker, CreateLinkEvent, ILinkEventTracker, RemoveLinkEventTracker, RoomEngineEvent, RoomId, RoomObjectCategory, RoomObjectType } from '@nitrots/nitro-renderer';
-import { FC, useEffect, useRef, useState } from 'react';
-import { GetRoomSession, ISelectedUser } from '../../api';
+import { FC, useEffect, useMemo, useRef, useState } from 'react';
+import { FaTimes } from 'react-icons/fa';
+import { GetRoomSession, ISelectedUser, LocalizeText } from '../../api';
 import { Button, DraggableWindowPosition, NitroCardContentView, NitroCardHeaderView, NitroCardView } from '../../common';
-import { useModTools, useNitroEvent, useObjectSelectedEvent } from '../../hooks';
+import { useModTools, useNitroEvent, useObjectSelectedEvent, useRoomUserListSnapshot } from '../../hooks';
 import { ModToolsChatlogView } from './views/room/ModToolsChatlogView';
 import { ModToolsRoomView } from './views/room/ModToolsRoomView';
 import { ModToolsTicketsView } from './views/tickets/ModToolsTicketsView';
@@ -15,8 +16,24 @@ export const ModToolsView: FC<{}> = props =>
     const [ currentRoomId, setCurrentRoomId ] = useState<number>(-1);
     const [ selectedUser, setSelectedUser ] = useState<ISelectedUser>(null);
     const [ isTicketsVisible, setIsTicketsVisible ] = useState(false);
-    const { openRooms = [], openRoomChatlogs = [], openUserChatlogs = [], openUserInfos = [], openRoomInfo = null, closeRoomInfo = null, toggleRoomInfo = null, openRoomChatlog = null, closeRoomChatlog = null, toggleRoomChatlog = null, openUserInfo = null, closeUserInfo = null, toggleUserInfo = null, openUserChatlog = null, closeUserChatlog = null, toggleUserChatlog = null } = useModTools();
+    const { tickets = [], openRooms = [], openRoomChatlogs = [], openUserChatlogs = [], openUserInfos = [], openRoomInfo = null, closeRoomInfo = null, toggleRoomInfo = null, openRoomChatlog = null, closeRoomChatlog = null, toggleRoomChatlog = null, openUserInfo = null, closeUserInfo = null, toggleUserInfo = null, openUserChatlog = null, closeUserChatlog = null, toggleUserChatlog = null } = useModTools();
     const elementRef = useRef<HTMLDivElement>(null);
+    // Reactive room roster — used to auto-clear the selected user if
+    // they leave the room while the panel is open, and to show an
+    // online dot on the selected-user button without going through
+    // userDataManager imperatively on every render.
+    const roomUserList = useRoomUserListSnapshot();
+    // Count of OPEN tickets the moderator hasn't picked yet — shown
+    // as a badge on the Report Tool button so a new ticket is visible
+    // immediately, without forcing the user to click through.
+    const openTicketsCount = useMemo(
+        () => tickets.filter(ticket => ticket && (ticket.state === 1)).length,
+        [ tickets ]
+    );
+    const isSelectedUserPresent = useMemo(
+        () => !!(selectedUser && roomUserList.some(user => user && (user.webID === selectedUser.userId))),
+        [ selectedUser, roomUserList ]
+    );
 
     useNitroEvent<RoomEngineEvent>([
         RoomEngineEvent.INITIALIZED,
@@ -120,28 +137,59 @@ export const ModToolsView: FC<{}> = props =>
     const isRoomInfoOpen = currentRoomId > 0 && openRooms.includes(currentRoomId);
     const isRoomChatlogOpen = currentRoomId > 0 && openRoomChatlogs.includes(currentRoomId);
     const isUserInfoOpen = selectedUser && openUserInfos.includes(selectedUser.userId);
+    const noRoomHint = LocalizeText('mod.tools.no.room') || 'Enter a room first';
 
     return (
         <>
             { isVisible &&
-                <NitroCardView className="nitro-mod-tools min-w-[200px]" theme="primary-slim" uniqueKey="mod-tools" windowPosition={ DraggableWindowPosition.TOP_LEFT } >
+                <NitroCardView className="nitro-mod-tools min-w-[220px]" theme="primary-slim" uniqueKey="mod-tools" windowPosition={ DraggableWindowPosition.TOP_LEFT } >
                     <NitroCardHeaderView headerText={ 'Mod Tools' } onCloseClick={ event => setIsVisible(false) } />
                     <NitroCardContentView className="text-black" gap={ 2 }>
-                        <Button active={ isRoomInfoOpen } disabled={ (currentRoomId <= 0) } gap={ 2 } justifyContent="start" onClick={ event => CreateLinkEvent(`mod-tools/toggle-room-info/${ currentRoomId }`) }>
-                            <div className="nitro-icon icon-small-room shrink-0" /> Room Tool
+                        <Button active={ isRoomInfoOpen } disabled={ (currentRoomId <= 0) } gap={ 2 } justifyContent="start" title={ (currentRoomId <= 0) ? noRoomHint : undefined } onClick={ event => CreateLinkEvent(`mod-tools/toggle-room-info/${ currentRoomId }`) }>
+                            <div className="nitro-icon icon-small-room shrink-0" />
+                            <span className="grow text-start">Room Tool</span>
                         </Button>
-                        <Button active={ isRoomChatlogOpen } disabled={ (currentRoomId <= 0) } gap={ 2 } innerRef={ elementRef } justifyContent="start" onClick={ event => CreateLinkEvent(`mod-tools/toggle-room-chatlog/${ currentRoomId }`) }>
-                            <div className="nitro-icon icon-chat-history shrink-0" /> Chatlog Tool
+                        <Button active={ isRoomChatlogOpen } disabled={ (currentRoomId <= 0) } gap={ 2 } innerRef={ elementRef } justifyContent="start" title={ (currentRoomId <= 0) ? noRoomHint : undefined } onClick={ event => CreateLinkEvent(`mod-tools/toggle-room-chatlog/${ currentRoomId }`) }>
+                            <div className="nitro-icon icon-chat-history shrink-0" />
+                            <span className="grow text-start">Chatlog Tool</span>
                         </Button>
-                        <Button active={ !!isUserInfoOpen } disabled={ !selectedUser } gap={ 2 } justifyContent="start" onClick={ () => CreateLinkEvent(`mod-tools/toggle-user-info/${ selectedUser.userId }`) }>
+                        <Button active={ !!isUserInfoOpen } disabled={ !selectedUser } gap={ 2 } justifyContent="start" onClick={ () => selectedUser && CreateLinkEvent(`mod-tools/toggle-user-info/${ selectedUser.userId }`) }>
                             <div className="nitro-icon icon-user shrink-0" />
                             { selectedUser
-                                ? <span className="truncate">{ selectedUser.username }</span>
-                                : <span className="opacity-50 italic">Select a user</span>
+                                ? (
+                                    <>
+                                        <span className="truncate grow text-start">{ selectedUser.username }</span>
+                                        <span
+                                            aria-label={ isSelectedUserPresent ? 'In room' : 'Left room' }
+                                            className={ `inline-block w-2 h-2 rounded-full shrink-0 ${ isSelectedUserPresent ? 'bg-emerald-500' : 'bg-zinc-400' }` }
+                                            title={ isSelectedUserPresent ? 'Still in this room' : 'No longer in this room' }
+                                        />
+                                        <span
+                                            className="inline-flex items-center justify-center w-4 h-4 rounded text-xs text-zinc-500 hover:text-rose-600 hover:bg-rose-100 shrink-0"
+                                            onClick={ event =>
+                                            {
+                                                event.stopPropagation();
+                                                setSelectedUser(null);
+                                            } }
+                                            role="button"
+                                            tabIndex={ 0 }
+                                            title="Clear selection">
+                                            <FaTimes />
+                                        </span>
+                                    </>
+                                )
+                                : <span className="opacity-50 italic grow text-start">Select a user</span>
                             }
                         </Button>
                         <Button active={ isTicketsVisible } gap={ 2 } justifyContent="start" onClick={ () => setIsTicketsVisible(prevValue => !prevValue) }>
-                            <div className="nitro-icon icon-tickets shrink-0" /> Report Tool
+                            <div className="nitro-icon icon-tickets shrink-0" />
+                            <span className="grow text-start">Report Tool</span>
+                            { (openTicketsCount > 0) &&
+                                <span
+                                    className="inline-flex items-center justify-center min-w-[1.25rem] h-5 px-1 rounded-full bg-rose-500 text-white text-xs font-semibold shrink-0"
+                                    title={ `${ openTicketsCount } open ticket${ openTicketsCount === 1 ? '' : 's' }` }>
+                                    { openTicketsCount > 99 ? '99+' : openTicketsCount }
+                                </span> }
                         </Button>
                     </NitroCardContentView>
                 </NitroCardView> }
diff --git a/src/hooks/mod-tools/useModTools.ts b/src/hooks/mod-tools/useModTools.ts
index be1013a..7001076 100644
--- a/src/hooks/mod-tools/useModTools.ts
+++ b/src/hooks/mod-tools/useModTools.ts
@@ -30,7 +30,7 @@ const useModToolsState = () =>
             const newValue = [ ...prevValue ];
             const existingIndex = newValue.indexOf(roomId);
 
-            if(existingIndex >= 0) newValue.splice(existingIndex);
+            if(existingIndex >= 0) newValue.splice(existingIndex, 1);
 
             return newValue;
         });
@@ -56,7 +56,7 @@ const useModToolsState = () =>
             const newValue = [ ...prevValue ];
             const existingIndex = newValue.indexOf(roomId);
 
-            if(existingIndex >= 0) newValue.splice(existingIndex);
+            if(existingIndex >= 0) newValue.splice(existingIndex, 1);
 
             return newValue;
         });
@@ -82,7 +82,7 @@ const useModToolsState = () =>
             const newValue = [ ...prevValue ];
             const existingIndex = newValue.indexOf(userId);
 
-            if(existingIndex >= 0) newValue.splice(existingIndex);
+            if(existingIndex >= 0) newValue.splice(existingIndex, 1);
 
             return newValue;
         });
@@ -108,7 +108,7 @@ const useModToolsState = () =>
             const newValue = [ ...prevValue ];
             const existingIndex = newValue.indexOf(userId);
 
-            if(existingIndex >= 0) newValue.splice(existingIndex);
+            if(existingIndex >= 0) newValue.splice(existingIndex, 1);
 
             return newValue;
         });
@@ -116,7 +116,7 @@ const useModToolsState = () =>
 
     const toggleUserChatlog = (userId: number) =>
     {
-        if(openRoomChatlogs.indexOf(userId) >= 0) closeUserChatlog(userId);
+        if(openUserChatlogs.indexOf(userId) >= 0) closeUserChatlog(userId);
         else openUserChatlog(userId);
     };