Hmm, I saw a completely different question when I got this by email - did you change the content of you post after you posted it?
Oh never mind, I think that was my mistake. ;-)
When I use full width page as a default page template, all social buttons are disappeared. Is it possible to place buttons somewhere on page? For default page template buttons are on its place.
You could code the buttons into a different part of your page, such as the footer or header, depending where you want them - what location did you have in mind? This will require making a child theme.
BTW, is it possible to make post page full width also? I select "full width" template for this page but it still just a blog page.
Do you want the entire blog section to be full-width? i.e. do you not want a sidebar either on your blog index/archives pages, or individual single posts?
You could achieve that by creating a child theme and removing the call to the sidebar.
Making a child theme means your changes won't be overwritten when you update the theme. If you're new to child themes, you can explore these guides:
Let me know what you'd like to do on both fronts and I can provide some guidance.