Hi, recently Facebook changed its page/post sharing policy so it is not possible to upload new images and change header-text + sub-text when sharing a post from your website.
>> This results in that the only thing that can be shared with strikingly multiple pages is the main image and site title + if you edit the meta data for each site.
I am currently running 13 sites on strikingly and many of my clients would like to share sub-pages (such as restaurant menu and table booking), but it just looks weird when sharing.
On our wordpress sites it is also a little bit more tricky, but you can get around it by editing and using facebook open graph editor to scrape and fetch new content before sharing.
Here's a link describing facebooks changes in case you didnt see this before: http://rivuu.com/social-media-tips/cant-change-your-facebook-link-post-preview/