You can display videos in the chat using Chat bot+.
(1) Click the setting button on the upper right of the management page.
(2)Click [Chat]>[Function]>[Chat bot+] on the left side of the screen.
(3)Click [Add parts]
(4)Enter "Part's name" and "Detail"
※Leave the box at the top right "ID" empty, it will automatically be filled when Chat bot+ is created.
(6)In the section "Action", click [Send file] from the pull down.
(7)Enter URL of the video in the box "URL".
※The video can be played in the chat window.