I don’t want to discourage you, but unfortunately, I have to. I took a look at a few websites built with Adobe Muse that are showcased on their “Site of the day” page. This is one such site…
I couldn’t open the home page from the web in Pinegrow. It informed me of HTML errors and basically choked. I was able to open one of the other pages like… http://www.thehangargroup.com/what.html
All I can say is, I feel deeply sorry for anyone who ever has to work with this website outside of Muse. The code wasn’t just bad, it was AWFUL. The way things are setup is absolutely bizarre. The navigation menu, for example, isn’t a list element, it was a series of links with the text set as p elements. They weren’t even in order in the code. Weird. The number of div and span elements was, well, dizzying (divvying?)
There were external stylesheets, but also a great deal of inline styling was used. (BAD) I would guess that Muse just styles whatever changes the user makes to its stock elements right on the page, as opposed to changing them in the stylesheets. Yuck! I don’t even want to get into the on page SEO (or should I say, lack thereof.) Although not specifically the program’s fault, you would think it would at least guide you towards using proper headings. On the home page of this site, the heading tags were as follows…
H2 - Get on our mailing list
H3 - by one of our sales representatives
H3 - please fill in the form.
There was no H1 heading, which is arguably the second most important piece of on page SEO a website can have.
Unless you have absolutely no choice, I would seriously reconsider rebuilding your Muse sites in Pinegrow using one of the included foundations, like Bootstrap. You could always do screengrabs of the old site, and use Pinegrow’s wonderful image overlay feature to recreate them.
Good luck to you.