How to Configure Split Screen, Drop Cross-Device File Sharing, and Sidebar Apps in Microsoft Edge

Modern browser workflows often degenerate into a chaotic sprawl of disconnected application windows, floating utility tools, and ad-hoc communication channels used merely to send links or screenshots between desktop and mobile workstations. To streamline daily operational multi-tasking without requiring third-party extensions, Microsoft Edge integrates three powerful native productivity utilities: Split Screen, Drop, and the customizable Sidebar.

Together, these tools transform Edge from a passive document viewer into an integrated operating workspace. Users can review complex technical documentation alongside active consoles, beam files securely to mobile devices via their Microsoft account backbone, and dock mission-critical enterprise web apps permanently alongside active browsing sessions. This guide details how to configure, optimise, and administratively manage Split Screen, Drop, and Sidebar applications within Microsoft Edge.


Architectural Mechanics: Edge Productivity Framework

Rather than executing as isolated extensions from third-party developers, these capabilities are hardcoded directly into the Chromium runtime architecture of Microsoft Edge:

Feature Underlying Subsystem Storage & Transport Mechanism Enterprise Management Capability
Split Screen Dual-Frame Chromium Viewport In-memory DOM tree coupling across dual side-by-side rendering frames. Governed via SplitScreenEnabled administrative policy.
Drop OneDrive Cloud Relay Encrypted cloud storage payload stored in OneDrive > Apps > Microsoft Edge > Drop. Governed via DropEnabled enterprise policy setting.
Sidebar Apps Progressive Web App (PWA) Host Sandboxed background rendering threads with isolated or shared cookie containers. Governed via HubsSidebarEnabled and URL allowlists.

Step 1: Configuring Split Screen for Dual-View Browsing

Split Screen allows administrators and researchers to inspect two distinct web properties simultaneously within a single physical application window and unified tab bar, eliminating messy OS-level window tiling.

Enabling and Accessing the Split Screen Button

  1. Open Microsoft Edge and navigate to Settings > Appearance (or enter edge://settings/appearance in the address bar).
  2. Scroll down to the Select which buttons to show on the toolbar section.
  3. Locate the Split screen button toggle and switch it to On.
  4. A dedicated dual-pane icon will immediately appear on the top-right toolbar next to the address bar.

Navigating and Coupling Tabs in Split Screen

Once active, Split Screen offers flexible navigation controls:

  • Initiate Split View: Click the Split Screen button (Ctrl + Shift + 2 on Windows, Cmd + Shift + 2 on macOS). Edge divides the active viewport into two equal vertical halves. The right-hand pane displays recent tabs or a search bar to load a secondary URL.
  • Switch Navigation Modes: Click the More options (three dots) icon at the top of the split frame to toggle between:
    • Open link in current tab: Clicks inside either pane navigate strictly within that active half.
    • Open link in right tab: Clicks on links in the left-hand pane automatically open the destination page on the right-hand side. This is ideal for reading API documentation or search engine result lists while keeping source pages anchored.
  • Adjust Split Proportions: Hover over the vertical separator dividing both screens until a double-ended arrow appears. Drag left or right to allocate 30/70 or 70/30 viewport ratios based on workflow priority.
  • Decouple or Close: Click More options > Open screen in new tab to convert either half back into a standalone browser tab without reloading.

Step 2: Configuring Drop for Cross-Device File and Note Sharing

The Drop utility provides a private, chat-like staging interface where users can drag and drop documents, code snippets, and screenshots on their PC, which instantaneously sync to the Microsoft Edge mobile application on iOS and Android.

Activating and Setting Up Drop

  1. Ensure you are signed into your personal or Microsoft 365 enterprise profile in Microsoft Edge.
  2. Click the Drop icon (paper airplane symbol) located in the Edge Sidebar. If the icon is missing, click the + (Customise sidebar) button and toggle Drop to active.
  3. Drop immediately initialises a secure folder within your personal or business OneDrive instance at:
    OneDrive / Apps / Microsoft Edge / Drop

Operational Workflows with Drop

  • Transferring Local Files: Drag files directly from File Explorer (Windows) or Finder (macOS) into the Drop panel. Files upload instantly to the OneDrive backend and become available on any device running Edge signed into that profile.
  • Sending Quick Code Snippets and Notes: Type plain text or markdown directly into the text box at the bottom of the Drop sidebar and press Enter.
  • Receiving on Mobile: Open the Microsoft Edge app on your phone, tap the three-line menu, and select Drop to download or view incoming assets immediately without requiring third-party messaging apps.
  • Storage Lifecycle Governance: Files sent via Drop consume your standard OneDrive allocation. Periodically right-click assets inside the Drop pane and select Delete to purge them from both local caches and cloud storage.

Step 3: Customising and Pinning Sidebar Productivity Apps

The Edge Sidebar enables persistent, one-click access to communication platforms, search utilities, and enterprise web applications without forcing users to navigate away from their active tabs.

Pinning Custom Enterprise Web Applications

In addition to default tools like Microsoft 365, Outlook, and Calculator, users can pin any web application or dashboard:

  1. Navigate to the web portal you wish to embed (for example, internal Jira, GitHub pull requests, or Grafana dashboards).
  2. Open the Sidebar and click the + (Customise sidebar) icon at the bottom.
  3. Under the Add current page section, click Add current page.
  4. The website’s favicon is permanently pinned to your Sidebar. Clicking it renders the application in a mobile-optimised responsive flyout pane that can be expanded or collapsed instantly.

Configuring Auto-Hide and Persistence

  • Pin / Unpin Sidebar: Click the small pin icon at the bottom of the Sidebar to anchor it permanently against the right edge of your browser window.
  • Auto-Hide Sidebar: When unpinned, the Sidebar retracts into a slim hover strip, maximizing horizontal display real estate on smaller laptop screens.
  • Independent Sound and Notification Handling: Pinned web apps (such as WhatsApp Web or Slack) run in background tabs inside the sidebar, maintaining their session cookies and delivering native desktop notifications even when their panels are hidden.

Enterprise Group Policy and Intune Governance

For systems administrators managing corporate Windows fleets, Microsoft provides administrative templates (ADMX) to enforce or disable these features centrally:

Group Policy Setting Name Registry Path Recommended Enterprise Setting
SplitScreenEnabled HKLM\SOFTWARE\Policies\Microsoft\Edge\SplitScreenEnabled 1 (Enabled) to improve multi-monitor productivity.
DropEnabled HKLM\SOFTWARE\Policies\Microsoft\Edge\DropEnabled Set to 0 (Disabled) if corporate Data Loss Prevention (DLP) restricts consumer cloud sync.
HubsSidebarEnabled HKLM\SOFTWARE\Policies\Microsoft\Edge\HubsSidebarEnabled 1 (Enabled) to deliver unified access to Copilot and enterprise tools.
EdgeSidebarAppUrlHostAllowlist HKLM\SOFTWARE\Policies\Microsoft\Edge\EdgeSidebarAppUrlHostAllowlist Define specific internal domains allowed to run within the sidebar framework.

Troubleshooting Common Edge Productivity Faults

Observed Issue Root Cause Diagnostic & Remediation Step
Split Screen icon missing from toolbar Feature disabled in browser appearance settings or restricted by enterprise policy Navigate to edge://settings/appearance and verify the toggle. If greyed out, check edge://policy to verify if SplitScreenEnabled is enforced to false.
Drop file upload fails with Storage limit reached Associated Microsoft OneDrive account has exhausted its available free or allocated cloud storage quota Log into onedrive.live.com, navigate to Apps > Microsoft Edge > Drop, and delete stale temporary media files to free quota space.
Sidebar web app displays broken formatting or blank white screen Website enforces X-Frame-Options: DENY or restrictive Content Security Policies (CSP) against iframe embedding Open the app in standard tab view. If the enterprise app rejects embedded rendering frames, configure it to run as a standalone PWA via Settings > Apps > Install this site as an app.
Drop messages do not sync to mobile Edge app Mobile and desktop Edge instances are signed into discordant profile identities (Personal vs Enterprise AAD) Open Settings > Accounts on both devices. Confirm that the exact same primary user principal name (UPN) is active and sync is turned on.

Operational Best Practices for Microsoft Edge Workflows

  • Leverage Link Targeting in Split Screen: When performing research or code reviews, configure Split Screen to open all links in the right pane. This anchors your reference checklist on the left while enabling rapid browsing on the right.
  • Keep Drop Clean for Ephemeral Transfers: Treat the Drop interface as a temporary transfer bridge rather than permanent document storage. Clean out large video and installation files weekly to preserve your primary OneDrive quota.
  • Pin High-Frequency SaaS Portals to the Sidebar: Rather than cluttering your horizontal tab bar with pinned tabs that easily get lost among dozens of open tabs, pin your ticketing system, internal chat, and calendar directly to the Edge Sidebar for seamless accessibility.

Get the best tech tips delivered straight to your inbox.

Join thousands of readers mastering Apple, Google, Microsoft, and Linux.