diff --git a/native/chat/chat.react.js b/native/chat/chat.react.js
--- a/native/chat/chat.react.js
+++ b/native/chat/chat.react.js
@@ -41,6 +41,7 @@
   ComposeSubchannelRouteName,
   DeleteThreadRouteName,
   ThreadSettingsRouteName,
+  FullScreenThreadMediaGalleryRouteName,
   MessageListRouteName,
   ChatThreadListRouteName,
   HomeChatThreadListRouteName,
@@ -55,6 +56,7 @@
 import ChatRouter, { type ChatRouterNavigationHelpers } from './chat-router';
 import ComposeSubchannel from './compose-subchannel.react';
 import ComposeThreadButton from './compose-thread-button.react';
+import FullScreenThreadMediaGallery from './fullscreen-thread-media-gallery.react';
 import HomeChatThreadList from './home-chat-thread-list.react';
 import MessageListContainer from './message-list-container.react';
 import MessageListHeaderTitle from './message-list-header-title.react';
@@ -249,6 +251,10 @@
   ),
   headerBackTitleVisible: false,
 });
+const fullScreenThreadMediaGalleryOptions = {
+  headerTitle: 'Media Gallery',
+  headerBackTitleVisible: false,
+};
 const deleteThreadOptions = {
   headerTitle: 'Delete chat',
   headerBackTitleVisible: false,
@@ -346,6 +352,11 @@
             component={ThreadSettings}
             options={threadSettingsOptions}
           />
+          <Chat.Screen
+            name={FullScreenThreadMediaGalleryRouteName}
+            component={FullScreenThreadMediaGallery}
+            options={fullScreenThreadMediaGalleryOptions}
+          />
           <Chat.Screen
             name={DeleteThreadRouteName}
             component={DeleteThread}
diff --git a/native/chat/fullscreen-thread-media-gallery.react.js b/native/chat/fullscreen-thread-media-gallery.react.js
new file mode 100644
--- /dev/null
+++ b/native/chat/fullscreen-thread-media-gallery.react.js
@@ -0,0 +1,27 @@
+// @flow
+
+import * as React from 'react';
+import { Text } from 'react-native';
+
+import type { ThreadInfo } from 'lib/types/thread-types';
+
+import type { NavigationRoute } from '../navigation/route-names';
+import type { ChatNavigationProp } from './chat.react';
+
+export type FullScreenThreadMediaGalleryParams = {
+  +threadInfo: ThreadInfo,
+};
+
+type FullScreenThreadMediaGalleryProps = {
+  +navigation: ChatNavigationProp<'FullScreenThreadMediaGallery'>,
+  +route: NavigationRoute<'FullScreenThreadMediaGallery'>,
+};
+
+function FullScreenThreadMediaGallery(
+  props: FullScreenThreadMediaGalleryProps,
+): React.Node {
+  const { id } = props.route.params.threadInfo;
+  return <Text> {id} </Text>;
+}
+
+export default FullScreenThreadMediaGallery;
diff --git a/native/chat/settings/thread-settings-category.react.js b/native/chat/settings/thread-settings-category.react.js
--- a/native/chat/settings/thread-settings-category.react.js
+++ b/native/chat/settings/thread-settings-category.react.js
@@ -2,7 +2,7 @@
 
 import invariant from 'invariant';
 import * as React from 'react';
-import { View, Text, Platform } from 'react-native';
+import { View, Text, Platform, TouchableOpacity } from 'react-native';
 
 import { useStyles } from '../../themes/colors';
 
@@ -34,6 +34,40 @@
   );
 }
 
+type ActionHeaderProps = {
+  +type: CategoryType,
+  +title: string,
+  +actionText: string,
+  +onPress: () => void,
+};
+function ThreadSettingsCategoryActionHeader(
+  props: ActionHeaderProps,
+): React.Node {
+  const styles = useStyles(unboundStyles);
+  let contentStyle, paddingStyle;
+  if (props.type === 'full') {
+    contentStyle = styles.fullHeader;
+    paddingStyle = styles.fullHeaderPadding;
+  } else if (props.type === 'outline') {
+    // nothing
+  } else if (props.type === 'unpadded') {
+    contentStyle = styles.fullHeader;
+  } else {
+    invariant(false, 'invalid ThreadSettingsCategory type');
+  }
+  return (
+    <View>
+      <View style={[styles.actionHeader, contentStyle]}>
+        <Text style={styles.title}>{props.title.toUpperCase()}</Text>
+        <TouchableOpacity onPress={props.onPress}>
+          <Text style={styles.actionText}>{props.actionText}</Text>
+        </TouchableOpacity>
+      </View>
+      <View style={paddingStyle} />
+    </View>
+  );
+}
+
 type FooterProps = {
   +type: CategoryType,
 };
@@ -93,6 +127,22 @@
     paddingBottom: 3,
     paddingLeft: 24,
   },
+  actionHeader: {
+    marginTop: 16,
+    flexDirection: 'row',
+    justifyContent: 'space-between',
+  },
+  actionText: {
+    color: 'link',
+    fontSize: 12,
+    fontWeight: '400',
+    paddingBottom: 3,
+    paddingRight: 12,
+  },
 };
 
-export { ThreadSettingsCategoryHeader, ThreadSettingsCategoryFooter };
+export {
+  ThreadSettingsCategoryHeader,
+  ThreadSettingsCategoryActionHeader,
+  ThreadSettingsCategoryFooter,
+};
diff --git a/native/chat/settings/thread-settings.react.js b/native/chat/settings/thread-settings.react.js
--- a/native/chat/settings/thread-settings.react.js
+++ b/native/chat/settings/thread-settings.react.js
@@ -57,6 +57,7 @@
 import {
   AddUsersModalRouteName,
   ComposeSubchannelModalRouteName,
+  FullScreenThreadMediaGalleryRouteName,
 } from '../../navigation/route-names';
 import type { TabNavigationProp } from '../../navigation/tab-navigator.react';
 import { useSelector } from '../../redux/redux-utils';
@@ -72,6 +73,7 @@
 import type { CategoryType } from './thread-settings-category.react';
 import {
   ThreadSettingsCategoryHeader,
+  ThreadSettingsCategoryActionHeader,
   ThreadSettingsCategoryFooter,
 } from './thread-settings-category.react';
 import ThreadSettingsChildThread from './thread-settings-child-thread.react';
@@ -112,6 +114,14 @@
       +title: string,
       +categoryType: CategoryType,
     }
+  | {
+      +itemType: 'actionHeader',
+      +key: string,
+      +title: string,
+      +categoryType: CategoryType,
+      +actionText: string,
+      +onPress: () => void,
+    }
   | {
       +itemType: 'footer',
       +key: string,
@@ -631,10 +641,12 @@
       const limit = 6;
 
       listData.push({
-        itemType: 'header',
+        itemType: 'actionHeader',
         key: 'mediaGalleryHeader',
         title: 'Media Gallery',
         categoryType: 'outline',
+        actionText: 'See more',
+        onPress: this.onPressSeeMoreMediaGallery,
       });
 
       listData.push({
@@ -856,6 +868,15 @@
           title={item.title}
         />
       );
+    } else if (item.itemType === 'actionHeader') {
+      return (
+        <ThreadSettingsCategoryActionHeader
+          type={item.categoryType}
+          title={item.title}
+          actionText={item.actionText}
+          onPress={item.onPress}
+        />
+      );
     } else if (item.itemType === 'footer') {
       return <ThreadSettingsCategoryFooter type={item.categoryType} />;
     } else if (item.itemType === 'name') {
@@ -1020,6 +1041,12 @@
       numSidebarsShowing: prevState.numSidebarsShowing + itemPageLength,
     }));
   };
+
+  onPressSeeMoreMediaGallery = () => {
+    this.props.navigation.navigate(FullScreenThreadMediaGalleryRouteName, {
+      threadInfo: this.props.threadInfo,
+    });
+  };
 }
 
 const unboundStyles = {
diff --git a/native/navigation/route-names.js b/native/navigation/route-names.js
--- a/native/navigation/route-names.js
+++ b/native/navigation/route-names.js
@@ -5,6 +5,7 @@
 import type { TermsAndPrivacyModalParams } from '../account/terms-and-privacy-modal.react';
 import type { ThreadPickerModalParams } from '../calendar/thread-picker-modal.react';
 import type { ComposeSubchannelParams } from '../chat/compose-subchannel.react';
+import type { FullScreenThreadMediaGalleryParams } from '../chat/fullscreen-thread-media-gallery.react';
 import type { ImagePasteModalParams } from '../chat/image-paste-modal.react';
 import type { MessageListParams } from '../chat/message-list-types';
 import type { MessageReactionsModalParams } from '../chat/message-reactions-modal.react';
@@ -49,6 +50,8 @@
 export const DevToolsRouteName = 'DevTools';
 export const EditPasswordRouteName = 'EditPassword';
 export const FriendListRouteName = 'FriendList';
+export const FullScreenThreadMediaGalleryRouteName =
+  'FullScreenThreadMediaGallery';
 export const HomeChatThreadListRouteName = 'HomeChatThreadList';
 export const ImageModalRouteName = 'ImageModal';
 export const ImagePasteModalRouteName = 'ImagePasteModal';
@@ -125,6 +128,7 @@
   +ComposeSubchannel: ComposeSubchannelParams,
   +ThreadSettings: ThreadSettingsParams,
   +DeleteThread: DeleteThreadParams,
+  +FullScreenThreadMediaGallery: FullScreenThreadMediaGalleryParams,
 };
 
 export type ChatTopTabsParamList = {
@@ -184,4 +188,5 @@
   ThreadSettingsRouteName,
   DeleteThreadRouteName,
   ComposeSubchannelRouteName,
+  FullScreenThreadMediaGalleryRouteName,
 ];