How to Post video clips
Instructions for video:

1. Find your video on YouTube(or any other site). Copy the plain URL of the video (you may need to erase extra code like &feature=g-high-u etc.):

2. Click on Video icon and paste the video url . Set "Video Type" According to video link(like Youtube for Youtube videos and vice versa) then click on insert.

Done!, Also Don't forget to add description of the video while posting.