diff --git a/front/package.json b/front/package.json
index 335923fd..a8135b5e 100644
--- a/front/package.json
+++ b/front/package.json
@@ -58,7 +58,7 @@
     "test": "TS_NODE_PROJECT=\"tsconfig-for-jasmine.json\" ts-node node_modules/jasmine/bin/jasmine --config=jasmine.json",
     "lint": "node_modules/.bin/eslint src/ . --ext .ts",
     "fix": "node_modules/.bin/eslint --fix src/ . --ext .ts",
-    "svelte-check-watch": "svelte-check --fail-on-warnings --fail-on-hints --compiler-warnings \"a11y-no-onchange:ignore,a11y-autofocus:ignore a11y-media-has-caption:ignore\" --watch",
-    "svelte-check":       "svelte-check --fail-on-warnings --fail-on-hints --compiler-warnings \"a11y-no-onchange:ignore,a11y-autofocus:ignore a11y-media-has-caption:ignore\""
+    "svelte-check-watch": "svelte-check --fail-on-warnings --fail-on-hints --compiler-warnings \"a11y-no-onchange:ignore,a11y-autofocus:ignore,a11y-media-has-caption:ignore\" --watch",
+    "svelte-check":       "svelte-check --fail-on-warnings --fail-on-hints --compiler-warnings \"a11y-no-onchange:ignore,a11y-autofocus:ignore,a11y-media-has-caption:ignore\""
   }
 }
diff --git a/front/src/Components/SoundMeterWidget.svelte b/front/src/Components/SoundMeterWidget.svelte
index 94e0cdd2..74d3f7b3 100644
--- a/front/src/Components/SoundMeterWidget.svelte
+++ b/front/src/Components/SoundMeterWidget.svelte
@@ -6,8 +6,6 @@
     export let stream: MediaStream|null;
     let volume = 0;
 
-    const NB_BARS = 5;
-
     let timeout: ReturnType<typeof setTimeout>;
     const soundMeter = new SoundMeter();
     let display = false;
diff --git a/front/src/Components/Video/ChatLayout.svelte b/front/src/Components/Video/ChatLayout.svelte
index bab13d66..50c9ed2f 100644
--- a/front/src/Components/Video/ChatLayout.svelte
+++ b/front/src/Components/Video/ChatLayout.svelte
@@ -1,7 +1,8 @@
 <script lang="ts">
     import Peer from "./Peer.svelte";
     import {layoutStore} from "../../Stores/LayoutStore";
-    import {onDestroy} from "svelte";
+    import {afterUpdate, onDestroy} from "svelte";
+    import {biggestAvailableArrayStore} from "../../Stores/BiggestAvailableArrayStore";
 
     let cssClass = 'one-col';
 
@@ -21,6 +22,10 @@
     onDestroy(() => {
         unsubscribe();
     });
+
+    afterUpdate(() => {
+        biggestAvailableArrayStore.recompute();
+    })
 </script>
 
 <div class="chat-mode {cssClass}">
diff --git a/front/src/Components/Video/LocalStreamMedia.svelte b/front/src/Components/Video/LocalStreamMedia.svelte
index 37c59ec7..97b69070 100644
--- a/front/src/Components/Video/LocalStreamMedia.svelte
+++ b/front/src/Components/Video/LocalStreamMedia.svelte
@@ -1,11 +1,11 @@
 <script lang="typescript">
-    import {ScreenSharingLocalMedia} from "../../Stores/ScreenSharingStore";
+    import type {ScreenSharingLocalMedia} from "../../Stores/ScreenSharingStore";
     import {videoFocusStore} from "../../Stores/VideoFocusStore";
 
-    function srcObject(node, stream) {
+    function srcObject(node: HTMLVideoElement, stream: MediaStream) {
         node.srcObject = stream;
         return {
-            update(newStream) {
+            update(newStream: MediaStream) {
                 if (node.srcObject != newStream) {
                     node.srcObject = newStream
                 }
@@ -14,11 +14,13 @@
     }
 
     export let peer : ScreenSharingLocalMedia;
-    let stream : MediaStream|undefined = peer.stream;
+    let stream = peer.stream;
     export let cssClass : string|undefined;
 </script>
 
 
 <div class="video-container {cssClass ? cssClass : ''}" class:hide={!stream}>
+    {#if stream}
     <video use:srcObject={stream} autoplay muted playsinline  on:click={() => videoFocusStore.toggleFocus(peer)}></video>
+    {/if}
 </div>
diff --git a/front/src/Components/Video/Peer.svelte b/front/src/Components/Video/Peer.svelte
index 8d5637f6..001df82c 100644
--- a/front/src/Components/Video/Peer.svelte
+++ b/front/src/Components/Video/Peer.svelte
@@ -4,7 +4,7 @@
     import ScreenSharingMedia from "./ScreenSharingMedia.svelte";
     import {ScreenSharingPeer} from "../../WebRtc/ScreenSharingPeer";
     import LocalStreamMedia from "./LocalStreamMedia.svelte";
-    import {DisplayableMedia} from "../../Stores/LayoutStore";
+    import type {DisplayableMedia} from "../../Stores/LayoutStore";
 
     export let peer: DisplayableMedia;
 </script>
@@ -15,6 +15,6 @@
     {:else if peer instanceof ScreenSharingPeer}
         <ScreenSharingMedia peer={peer}/>
     {:else}
-        <LocalStreamMedia peer={peer}/>
+        <LocalStreamMedia peer={peer} cssClass=""/>
     {/if}
 </div>
diff --git a/front/src/Components/Video/PresentationLayout.svelte b/front/src/Components/Video/PresentationLayout.svelte
index f7ac5802..3e76865c 100644
--- a/front/src/Components/Video/PresentationLayout.svelte
+++ b/front/src/Components/Video/PresentationLayout.svelte
@@ -2,6 +2,12 @@
     import Peer from "./Peer.svelte";
     import {layoutStore} from "../../Stores/LayoutStore";
     import {videoFocusStore} from "../../Stores/VideoFocusStore";
+    import {afterUpdate} from "svelte";
+    import {biggestAvailableArrayStore} from "../../Stores/BiggestAvailableArrayStore";
+
+    afterUpdate(() => {
+        biggestAvailableArrayStore.recompute();
+    })
 </script>
 
 <div class="main-section">
diff --git a/front/src/Components/Video/ScreenSharingMedia.svelte b/front/src/Components/Video/ScreenSharingMedia.svelte
index 01d43313..5cb84237 100644
--- a/front/src/Components/Video/ScreenSharingMedia.svelte
+++ b/front/src/Components/Video/ScreenSharingMedia.svelte
@@ -1,5 +1,5 @@
 <script lang="ts">
-    import {ScreenSharingPeer} from "../../WebRtc/ScreenSharingPeer";
+    import type {ScreenSharingPeer} from "../../WebRtc/ScreenSharingPeer";
     import {videoFocusStore} from "../../Stores/VideoFocusStore";
 
     export let peer: ScreenSharingPeer;
@@ -7,10 +7,10 @@
     let name = peer.userName;
     let statusStore = peer.statusStore;
 
-    function srcObject(node, stream) {
+    function srcObject(node: HTMLVideoElement, stream: MediaStream) {
         node.srcObject = stream;
         return {
-            update(newStream) {
+            update(newStream: MediaStream) {
                 if (node.srcObject != newStream) {
                     node.srcObject = newStream
                 }
@@ -45,8 +45,9 @@
     {/if}
     {#if $streamStore === null}
         <i style="background-color: {getColorByString(name)};">{name}</i>
+    {:else}
+        <video use:srcObject={$streamStore} autoplay playsinline on:click={() => videoFocusStore.toggleFocus(peer)}></video>
     {/if}
-    <video use:srcObject={$streamStore} autoplay playsinline on:click={() => videoFocusStore.toggleFocus(peer)}></video>
 </div>
 
 <style lang="scss">
diff --git a/front/src/Components/Video/VideoMedia.svelte b/front/src/Components/Video/VideoMedia.svelte
index 311d5304..6944401d 100644
--- a/front/src/Components/Video/VideoMedia.svelte
+++ b/front/src/Components/Video/VideoMedia.svelte
@@ -1,13 +1,10 @@
 <script lang="ts">
-    import {VideoPeer} from "../../WebRtc/VideoPeer";
+    import type {VideoPeer} from "../../WebRtc/VideoPeer";
     import SoundMeterWidget from "../SoundMeterWidget.svelte";
     import microphoneCloseImg from "../images/microphone-close.svg";
     import reportImg from "./images/report.svg";
     import blockSignImg from "./images/blockSign.svg";
-    import {DivImportance} from "../../WebRtc/LayoutManager";
     import {videoFocusStore} from "../../Stores/VideoFocusStore";
-    import {EnableCameraScene, EnableCameraSceneName} from "../../Phaser/Login/EnableCameraScene";
-    import {MenuScene, MenuSceneName} from "../../Phaser/Menu/MenuScene";
     import {showReportScreenStore} from "../../Stores/ShowReportScreenStore";
 
     export let peer: VideoPeer;
@@ -16,8 +13,6 @@
     let statusStore = peer.statusStore;
     let constraintStore = peer.constraintsStore;
 
-    constraintStore.subscribe((vl) => console.log('CONS', vl));
-
     function getColorByString(str: string) : string|null {
         let hash = 0;
         if (str.length === 0) {
@@ -35,10 +30,10 @@
         return color;
     }
 
-    function srcObject(node, stream) {
+    function srcObject(node: HTMLVideoElement, stream: MediaStream) {
         node.srcObject = stream;
         return {
-            update(newStream) {
+            update(newStream: MediaStream) {
                 if (node.srcObject != newStream) {
                     node.srcObject = newStream
                 }
@@ -47,7 +42,6 @@
     }
 
     function openReport(peer: VideoPeer): void {
-        console.log('OPENING REPORT');
         showReportScreenStore.set({ userId:peer.userId, userName: peer.userName });
     }
 
@@ -70,7 +64,9 @@
         <img alt="Report this user" src={reportImg}>
         <span>Report/Block</span>
     </button>
+    {#if $streamStore }
     <video use:srcObject={$streamStore} autoplay playsinline on:click={() => videoFocusStore.toggleFocus(peer)}></video>
+    {/if}
     <img src={blockSignImg} class="block-logo" alt="Block" />
     {#if $constraintStore && $constraintStore.audio !== false}
         <SoundMeterWidget stream={$streamStore}></SoundMeterWidget>
diff --git a/front/src/Phaser/Game/GameScene.ts b/front/src/Phaser/Game/GameScene.ts
index aa323c76..30c4d8f8 100644
--- a/front/src/Phaser/Game/GameScene.ts
+++ b/front/src/Phaser/Game/GameScene.ts
@@ -96,6 +96,7 @@ import {waScaleManager} from "../Services/WaScaleManager";
 import {peerStore, screenSharingPeerStore} from "../../Stores/PeerStore";
 import {EmoteManager} from "./EmoteManager";
 import {videoFocusStore} from "../../Stores/VideoFocusStore";
+import {biggestAvailableArrayStore} from "../../Stores/BiggestAvailableArrayStore";
 
 export interface GameSceneInitInterface {
     initPosition: PointInterface|null,
@@ -134,7 +135,7 @@ interface DeleteGroupEventInterface {
 
 const defaultStartLayerName = 'start';
 
-export class GameScene extends DirtyScene implements CenterListener {
+export class GameScene extends DirtyScene /*implements CenterListener*/ {
     Terrains : Array<Phaser.Tilemaps.Tileset>;
     CurrentPlayer!: Player;
     MapPlayers!: Phaser.Physics.Arcade.Group;
@@ -516,7 +517,9 @@ export class GameScene extends DirtyScene implements CenterListener {
         this.reposition();
 
         // From now, this game scene will be notified of reposition events
-        layoutManager.setListener(this);
+        //layoutManager.setListener(this);
+        biggestAvailableArrayStore.subscribe((box) => this.updateCameraOffset());
+
         this.triggerOnMapLayerPropertyChange();
         this.listenToIframeEvents();
 
@@ -1142,7 +1145,8 @@ ${escapedMessage}
     initCamera() {
         this.cameras.main.setBounds(0,0, this.Map.widthInPixels, this.Map.heightInPixels);
         this.cameras.main.startFollow(this.CurrentPlayer, true);
-        this.updateCameraOffset();
+        //this.updateCameraOffset();
+        biggestAvailableArrayStore.recompute();
     }
 
     addLayer(Layer : Phaser.Tilemaps.TilemapLayer){
@@ -1524,7 +1528,8 @@ ${escapedMessage}
         this.openChatIcon.setY(this.game.renderer.height - 2);
 
         // Recompute camera offset if needed
-        this.updateCameraOffset();
+        //this.updateCameraOffset();
+        biggestAvailableArrayStore.recompute();
     }
 
     /**
@@ -1542,9 +1547,9 @@ ${escapedMessage}
         this.cameras.main.setFollowOffset((xCenter - game.offsetWidth/2) * window.devicePixelRatio / this.scale.zoom , (yCenter - game.offsetHeight/2) * window.devicePixelRatio / this.scale.zoom);
     }
 
-    public onCenterChange(): void {
+    /*public onCenterChange(): void {
         this.updateCameraOffset();
-    }
+    }*/
 
     public startJitsi(roomName: string, jwt?: string): void {
         const allProps = this.gameMap.getCurrentProperties();
@@ -1605,6 +1610,7 @@ ${escapedMessage}
 
     zoomByFactor(zoomFactor: number) {
         waScaleManager.zoomModifier *= zoomFactor;
-        this.updateCameraOffset();
+        //this.updateCameraOffset();
+        biggestAvailableArrayStore.recompute();
     }
 }
diff --git a/front/src/Stores/BiggestAvailableArrayStore.ts b/front/src/Stores/BiggestAvailableArrayStore.ts
new file mode 100644
index 00000000..0427b918
--- /dev/null
+++ b/front/src/Stores/BiggestAvailableArrayStore.ts
@@ -0,0 +1,132 @@
+import {derived, get, Readable, writable} from "svelte/store";
+import type {Box} from "../WebRtc/LayoutManager";
+import {HtmlUtils} from "../WebRtc/HtmlUtils";
+import {LayoutMode} from "../WebRtc/LayoutManager";
+import {layoutModeStore} from "./LayoutStore";
+import {VideoPeer} from "../WebRtc/VideoPeer";
+import {RemotePeer, SimplePeer} from "../WebRtc/SimplePeer";
+import {ScreenSharingPeer} from "../WebRtc/ScreenSharingPeer";
+
+/**
+ * Tries to find the biggest available box of remaining space (this is a space where we can center the character)
+ */
+function findBiggestAvailableArray(): Box {
+    const game = HtmlUtils.querySelectorOrFail<HTMLCanvasElement>('#game canvas');
+    if (get(layoutModeStore) === LayoutMode.VideoChat) {
+        const children = document.querySelectorAll<HTMLDivElement>('div.chat-mode > div');
+        const htmlChildren = Array.from(children.values());
+
+        // No chat? Let's go full center
+        if (htmlChildren.length === 0) {
+            return {
+                xStart: 0,
+                yStart: 0,
+                xEnd: game.offsetWidth,
+                yEnd: game.offsetHeight
+            }
+        }
+
+        const lastDiv = htmlChildren[htmlChildren.length - 1];
+        // Compute area between top right of the last div and bottom right of window
+        const area1 = (game.offsetWidth - (lastDiv.offsetLeft + lastDiv.offsetWidth))
+            * (game.offsetHeight - lastDiv.offsetTop);
+
+        // Compute area between bottom of last div and bottom of the screen on whole width
+        const area2 = game.offsetWidth
+            * (game.offsetHeight - (lastDiv.offsetTop + lastDiv.offsetHeight));
+
+        if (area1 < 0 && area2 < 0) {
+            // If screen is full, let's not attempt something foolish and simply center character in the middle.
+            return {
+                xStart: 0,
+                yStart: 0,
+                xEnd: game.offsetWidth,
+                yEnd: game.offsetHeight
+            }
+        }
+        if (area1 <= area2) {
+            console.log('lastDiv', lastDiv.offsetTop, lastDiv.offsetHeight);
+            return {
+                xStart: 0,
+                yStart: lastDiv.offsetTop + lastDiv.offsetHeight,
+                xEnd: game.offsetWidth,
+                yEnd: game.offsetHeight
+            }
+        } else {
+            console.log('lastDiv', lastDiv.offsetTop);
+            return {
+                xStart: lastDiv.offsetLeft + lastDiv.offsetWidth,
+                yStart: lastDiv.offsetTop,
+                xEnd: game.offsetWidth,
+                yEnd: game.offsetHeight
+            }
+        }
+    } else {
+        // Possible destinations: at the center bottom or at the right bottom.
+        const mainSectionChildren = Array.from(document.querySelectorAll<HTMLDivElement>('div.main-section > div').values());
+        const sidebarChildren = Array.from(document.querySelectorAll<HTMLDivElement>('aside.sidebar > div').values());
+
+        // No presentation? Let's center on the screen
+        if (mainSectionChildren.length === 0) {
+            return {
+                xStart: 0,
+                yStart: 0,
+                xEnd: game.offsetWidth,
+                yEnd: game.offsetHeight
+            }
+        }
+
+        // At this point, we know we have at least one element in the main section.
+        const lastPresentationDiv = mainSectionChildren[mainSectionChildren.length-1];
+
+        const presentationArea = (game.offsetHeight - (lastPresentationDiv.offsetTop + lastPresentationDiv.offsetHeight))
+            * (lastPresentationDiv.offsetLeft + lastPresentationDiv.offsetWidth);
+
+        let leftSideBar: number;
+        let bottomSideBar: number;
+        if (sidebarChildren.length === 0) {
+            leftSideBar = HtmlUtils.getElementByIdOrFail<HTMLDivElement>('sidebar').offsetLeft;
+            bottomSideBar = 0;
+        } else {
+            const lastSideBarChildren = sidebarChildren[sidebarChildren.length - 1];
+            leftSideBar = lastSideBarChildren.offsetLeft;
+            bottomSideBar = lastSideBarChildren.offsetTop + lastSideBarChildren.offsetHeight;
+        }
+        const sideBarArea = (game.offsetWidth - leftSideBar)
+            * (game.offsetHeight - bottomSideBar);
+
+        if (presentationArea <= sideBarArea) {
+            return {
+                xStart: leftSideBar,
+                yStart: bottomSideBar,
+                xEnd: game.offsetWidth,
+                yEnd: game.offsetHeight
+            }
+        } else {
+            return {
+                xStart: 0,
+                yStart: lastPresentationDiv.offsetTop + lastPresentationDiv.offsetHeight,
+                xEnd: /*lastPresentationDiv.offsetLeft + lastPresentationDiv.offsetWidth*/ game.offsetWidth , // To avoid flickering when a chat start, we center on the center of the screen, not the center of the main content area
+                yEnd: game.offsetHeight
+            }
+        }
+    }
+}
+
+
+/**
+ * A store that contains the list of (video) peers we are connected to.
+ */
+function createBiggestAvailableArrayStore() {
+
+    const { subscribe, set, update } = writable<Box>({xStart:0, yStart: 0, xEnd: 1, yEnd: 1});
+
+    return {
+        subscribe,
+        recompute: () => {
+            set(findBiggestAvailableArray());
+        }
+    };
+}
+
+export const biggestAvailableArrayStore = createBiggestAvailableArrayStore();
diff --git a/front/src/WebRtc/LayoutManager.ts b/front/src/WebRtc/LayoutManager.ts
index 3d92baac..ad45f75d 100644
--- a/front/src/WebRtc/LayoutManager.ts
+++ b/front/src/WebRtc/LayoutManager.ts
@@ -34,6 +34,8 @@ export const JITSI_MESSAGE_PROPERTIES = 'jitsiTriggerMessage';
 export const AUDIO_VOLUME_PROPERTY = 'audioVolume';
 export const AUDIO_LOOP_PROPERTY = 'audioLoop';
 
+export type Box = {xStart: number, yStart: number, xEnd: number, yEnd: number};
+
 /**
  * This class is in charge of the video-conference layout.
  * It receives positioning requests for videos and does its best to place them on the screen depending on the active layout mode.
@@ -52,38 +54,6 @@ class LayoutManager {
         this.listener = centerListener;
     }
 
-    public add(importance: DivImportance, userId: string, html: string): void {
-        const div = document.createElement('div');
-        div.innerHTML = html;
-        div.id = "user-"+userId;
-        div.className = "media-container"
-        div.onclick = () => {
-            const parentId = div.parentElement?.id;
-            if (parentId === 'sidebar' || parentId === 'chat-mode') {
-                this.focusOn(userId);
-            } else {
-                this.removeFocusOn(userId);
-            }
-        }
-
-        if (importance === DivImportance.Important) {
-            this.importantDivs.set(userId, div);
-
-            // If this is the first video with high importance, let's switch mode automatically.
-            if (this.importantDivs.size === 1 && this.mode === LayoutMode.VideoChat) {
-                this.switchLayoutMode(LayoutMode.Presentation);
-            }
-        } else if (importance === DivImportance.Normal) {
-            this.normalDivs.set(userId, div);
-        } else {
-            throw new Error('Unexpected importance');
-        }
-
-        this.positionDiv(div, importance);
-        this.adjustVideoChatClass();
-        this.listener?.onCenterChange();
-    }
-
     private positionDiv(elem: HTMLDivElement, importance: DivImportance): void {
         if (this.mode === LayoutMode.VideoChat) {
             const chatModeDiv = HtmlUtils.getElementByIdOrFail<HTMLDivElement>('chat-mode');
@@ -99,48 +69,6 @@ class LayoutManager {
         }
     }
 
-    /**
-     * Put the screen in presentation mode and move elem in presentation mode (and all other videos in normal mode)
-     */
-    private focusOn(userId: string): void {
-        const focusedDiv = this.getDivByUserId(userId);
-        for (const [importantUserId, importantDiv] of this.importantDivs.entries()) {
-            //this.positionDiv(importantDiv, DivImportance.Normal);
-            this.importantDivs.delete(importantUserId);
-            this.normalDivs.set(importantUserId, importantDiv);
-        }
-        this.normalDivs.delete(userId);
-        this.importantDivs.set(userId, focusedDiv);
-        //this.positionDiv(focusedDiv, DivImportance.Important);
-        this.switchLayoutMode(LayoutMode.Presentation);
-    }
-
-    /**
-     * Removes userId from presentation mode
-     */
-    private removeFocusOn(userId: string): void {
-        const importantDiv = this.importantDivs.get(userId);
-        if (importantDiv === undefined) {
-            throw new Error('Div with user id "'+userId+'" is not in important mode');
-        }
-        this.normalDivs.set(userId, importantDiv);
-        this.importantDivs.delete(userId);
-
-        this.positionDiv(importantDiv, DivImportance.Normal);
-    }
-
-    private getDivByUserId(userId: string): HTMLDivElement {
-        let div = this.importantDivs.get(userId);
-        if (div !== undefined) {
-            return div;
-        }
-        div = this.normalDivs.get(userId);
-        if (div !== undefined) {
-            return div;
-        }
-        throw new Error('Could not find media with user id '+userId);
-    }
-
     /**
      * Removes the DIV matching userId.
      */
@@ -218,7 +146,7 @@ class LayoutManager {
     /**
      * Tries to find the biggest available box of remaining space (this is a space where we can center the character)
      */
-    public findBiggestAvailableArray(): {xStart: number, yStart: number, xEnd: number, yEnd: number} {
+    public findBiggestAvailableArray(): Box {
         const game = HtmlUtils.querySelectorOrFail<HTMLCanvasElement>('#game canvas');
         if (this.mode === LayoutMode.VideoChat) {
             const children = document.querySelectorAll<HTMLDivElement>('div.chat-mode > div');