Please note: this is for a moving banner without sound.
Upload your video to vimeo
Get you video ID (you can find this in the link/url : https://vimeo.com/111111111 - the video ID are the numbers after vimeo.com, here in bold)
Copy this video ID
Paste the video ID in the field
If applicable, add video hash and text. Leave empty if it's not applicable
Click on the purple button "copy HTML to clipboard"
Embed this to the platform: find out how in this helpdesk article