If you have a front camera-enabled phone, you can use Screen Recorder to record a parallel video along with recording your screen.

There are 2 ways by which you can record  an interactive video

A. When Floating button is Disabled 

Step 1. Open the app and click on the plus button.

Step 2. Now select interactive video option.

Step 3. A dialogue box will appear, now click on start now to start your recording.

B. When Floating button is Enabled

Step 1. Click on the floating button icon and now click on the 3 dots.

 Step 2. Click the option of record interactive video. 

Step 3. A dialogue box will appear ,now click on start now to start your recording.