@HyunNI_Shin ahhh... so that's how you do it... thanks dongsaeng!

eonni.. do you mean post video in your story is it?? if it is... then you just copy the 'embed html' from the video and click 'sources' on the very left side of your... you know.. the 'add chapter'. the first line of the 'Body' got 'sources'. click that. and then past the 'embed html' inside the 'Body'... then click back 'sources' and a 'flash' box will appear.. just update it and the video will appear on it^^