Thanks for the reply. I have already looked at many of the login widgits and found they're not what I'm looking for. I've also found that the "WooCommerce Login" widget displays the logged in user in its title bar as long as I have a page with a sidebar in it. I was hoping to avoid the sidebar display on all pages (some pages need to be full width) and still give the user a clue that they're logged in.
You mention custom code - is it complex and where would I put it? In other words do I put the custom code in a Propulsion file, in which case I can use a child theme or is it a base WordPress file?