I have used Entity Framework in Visual Studio 2012. Build entity model by \"reverse engineer code first\".
But when I setup Visual Studio 2015 just now, and setup EF
step 1- download Entity Framework Power Tools from https://visualstudiogallery.msdn.microsoft.com/72a60b14-1581-4b9b-89f2-846072eff19d.
step 2- change download file extension from .vsix to .zip.
step 3- Extract .zip and open extension.vsixmanifest(xml file) and add following under supported tags and save.
Pro
Note:- doesn't matter you have any other edition.
step 4- now Select the files in the extracted folder and zip them. Don’t zip the folder.
step 5- now change the folder name and extension (example as EFPowerTools15.vsix).
Step 6- you should try to install created tool only from Administrator account. otherwise you still won't be able to install it.