Google Analytics - Cosum Report 4 Session metrics and 3 eCommerce metrics

Create guideline HorTo setup Google Analytics Custom report for: Session report: report about users who spend - 0-10 sec. - 10-20 sec. - 20-30 sec. - >=30 seconds List the important eCommerce metrics - Which is the highest selling product on the site - What % of users adding to cart go on to purchase - What % of users starting checkout actually go on to complete a purchase ======== We need just report template or guideline how to set up this report, so any access to personal data, for create and check this project goal use data from Google Demo account - [login to view URL]