How to Enable Multiwindow in Any Android Phone

Multiwindow mode is a secret or beta mode on Android 6.0 Marshmallow.

This feature is not available for all mobile.

But there is a technique to enable multiwindow mode in Android 6.0 Marshmallow.


Requirements:
1. Phone must be rooted.
2. Android version 6+

Step 1: Enable Developer Mode

Go to settings>about
Find "Build Number"
Touch or tap 7+ time on "Build number"

Then a new option will appear on settings Called "Developer options"

Step 2: Download Build Prop Editor

Download "Build prop editor" from Play store
https://play.google.com/store/apps/details?id=com.jrummy.apps.build.prop.editor

Step 3: Edit in Build Prop

Search in Build prop editor "ro.build.type"

Then replace "user" with "userdebug"

Step 4: Restart or Reboot Phone

After editing in Build prop restart or Reboot your phone

Step 5: Enable Multiwindow Mode

Go to Settings>Developer options
Find multiwindow mode
And enable it

Step 6: Use Multiwindow Mode

Open recent apps and
Use multiwindow mode as shown screenshots