Unlocking everything at once

It seems a convenient setup with Multi Control, but the screen timeout issue can be frustrating. Unfortunately, there's no direct way to wake all devices simultaneously by logging in to your computer. However, here are a few suggestions:

1. Disable Screen Timeout Temporarily: On your Galaxy devices, go to Settings > Display > Screen timeout and set it to "Keep screen on while connected to power." This will prevent them from locking when connected to a charger, which might be helpful during extended sessions.
2. Use Samsung Flow or SideSync: These tools allow you to control your Galaxy devices from your PC seamlessly. With Samsung Flow, you can unlock connected devices with a single biometric authentication on your PC.
3. Developer Options - Stay Awake: Enable Developer Options on your phone and tablet (Settings > About phone/tablet > Tap "Build Number" 7 times). Then, go to Settings > Developer Options and turn on Stay awake while charging. This keeps the devices awake as long as they're plugged in.
4. Keyboard/Mouse Wake Feature: When using Multi Control, some devices allow keyboard or mouse input to wake the screen without unlocking fully. Try pressing any key or moving the mouse on the shared setup to see if it wakes your devices.
5. Third-Party Solutions: Consider automation tools like Bixby Routines or Tasker to keep your devices awake or synchronize their wake states when connected to Multi Control.