7. I’ve created Newsletter popup static block and added this code http://prntscr.com/gtj5rd in Custom css. Please check.
8. Navigate to Appearance > Widgets. Fill in Custom Sidebar title and press the Add Sidebar button, then add in your custom sidebar prefooter static block. Go to Edit Shop page > [8theme] Layout options > http://prntscr.com/gtixbm.
Regards