Have you tried out latest SQL Server Management Studio? It is available as the October release. It can be used with SQL Server 2016 through SQL Server 2005 and supports side-by-side installation.
You can download it from here.
Here are some of the features/functionalities added with this release (from MSDN)
- New modernized lightweight web installer
- New Always Encrypted column encryption wizard
- New Column Master Key (CMK) rotation dialog
- New stretch database monitor