1.Add a image:
1.1.you can paste image from clipbord.
1.2.you can click attach button to upload a image,just like following:
![](http://developer.arrim.net/assets/files/2018-06-21/1529574021-523377-addimageandfile.png)
![](http://developer.arrim.net/assets/files/2018-06-21/1529574098-802624-01.jpeg)
2.Add a attachement(Just like add a image in step 1):
3.Add a video:
3.1,upload you video to facebook,youtobe... etc.
3.2,paste you video link or BBCode:"[media]video link url[/media]" in the input box:
Supported sites:
![](http://developer.arrim.net/assets/files/2018-06-22/1529628841-938692-aaaaaa.jpeg)