How to configure/customize new Sidebar(brought instead of old horizontal tab bar) in the new Lightning Experience? Like adding or removing objects?
2 Answers
this feature will be coming out in Spring '16. Please see this link to Trailhead:
https://developer.salesforce.com/trailhead/lex_migration_whatsnew/lex_migration_whatsnew_nav_setup
It is available in Spring '16 under setup -> Navigation Menu. However you have to first enable lightning experience and access lightning experience based setup instead of classic.