Similarly to how the in-line pictures are displayed in the question (see Add Images to Questions), it is possible to include videos, images and audio files.
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​Note: For now we only allow you to upload PNG/JPEG/GIF for images, MP4 for videos and MP3/Wav for audio files, all up to 10MB
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1/ Click onto the 'Attach media' icon at the below 'Your question' input. This will produce a pop-up on your screen where you can select the media file you want to use.

2/ The attached media will appear in your conversation three.