Working with SQL Reporting (rptproj) in VS 2015

After a bunch of searching and many incorrect suggestions I found the right SSDT package to get SQL Reporting projects to work in VS 2015:

Follow step 3 here:

Everything I did to get SSDT installed through Visual Studio as many suggested didn’t work for getting me access to SQL Reporting projects. Installing the SSDT package from step 3 in that link DID work.