Step #1: Click the white space in the comment box or reply button first in order for the "Add Media" to show up.
To use them in for chat room, copy the thumb and paste it there
Here's a guide for chat room:
Got permission to expand them and easy accessible, follow the site to support more of these~
addmedia Molang Kawawaii Bunny Rabbit
Cheering Support Cheer Leader
( ´ ▽ ` )ﾉ Credits:
Got permission from Chinese Font Design to use~