When Apple wrote Pages v5 from scratch, it inherited very little from Pages '09 — in fact, 100+ features less. Two page viewing was omitted. No fix, unless Apple develops a guilty conscience. After 18 months of fbombing around, Apple apparently is uninterested in what users really need in a word processing application.
Apple is not here, and you can post your feedback here. Don't expect a reply though, as a large number of unhappy Pages v5 users are doing the same.
Pages '09 v4.3 will work on Mavericks and Yosemite 10.10.3. You can continue to use the venerable tool that works.