If you are copying content from an existing web site (especially a static html website) over to your Joomla site, you may be able to make quick work of that task by copying each page's source code, pasting it into Joomla and then using some of the built in features of JCE Editor Pro. This is an especially handy method if the page you are copying from has used lots of old style, non-mobile friendly tables.
That's what we are looking at and going to do in this live stream.