Hi Nancy, thank you for your suggestion! We'll pass it on to our Product Team; in the meantime, have you checked out any of our Setup Wizards for prebuilt systems? There are several to choose from that address some of the most common business processes - lead capture, lead nurture, sales pages, membership site setup and more. Check out our support article and or our Ontraport University video on these wizards.
Though these don't encompass assets account-wide, they do get you up and running with your colors, logo, font styles, etc. for certain processes. Hope this information helps!