You can import and edit certain existing pages from your store, but not the storefront/ Homepage. When you login to Shogun, you will see the option to import these existing pages on the "Pages" section in your dashboard. The importer will pull in your text and images, but can't import more complex page elements.
What pages are controlled by my theme and not editable within Shogun?
Certain pages are controlled by your theme, and as such can not be edited with Shogun at the moment.
- The checkout page of your site
- The cart page of your site
- Your homepage (this can be overridden using this tutorial)
- The blog page (though you can create and edit articles within Shogun)