with 7.0 and the 4-layer structure, service studio does not provide a template for it.

What I like to see:

create your first app, the app will be created. a seperate esapce for the theme, a seperate esapce for the common/layout stuff and then the composite-application espace  for your app.

creating your 2nd app:
- choose your style, either from the commontheme or it's own theme.
- is it part of the 4-layers *and thus using the common-flow from the common-espace