Disclaimer: I am the newbie of all newbies in the Muse world. I just started this adventure 3 days ago.
My situation: I'm starting with my mobile-first design. My site is mobile-driven & I plan to convert it into an app one glorious day. It probably goes without saying that I understand 0% of web-design terminology, so I am having no luck finding answers to my questions.
Q: Starting in mobile design first, I see that my desktop layout doesn't simultaneously populate from my mobile layout design. My desktop pages remain white & barren. How can I copy the mobile layout to desktop layout in the most efficient way?
Looks like you go with adaptive layout?
Well, then you have to do the desktop design as well.
There´s no automatic way.
Select all elements on your mobile design – or do it step by step – choose desktop layout – paste in place and rearrange it as desired.
This is what I suspected - I will give it a whirl!
Go for it and ask whenever you struggle.
One recommendation: most people struggle with the pinning which is with your adaptive design mostly not necessary at all.
Said that I wish all the best and good luck