Build-on a Post in Knowledge Forum Posted by brmcleod 5 years ago About Embed A quick intro to building-on another post in Knowledge Forum. Knowledge Building, Knowledge Forum <iframe class="wp-block-mexp-vimeo hwdsb-tv" src="//hwdsb.tv/media/build-on-a-post-in-knowledge-forum/?embed=true" width="560" height="315" frameborder="0" allowfullscreen></iframe>