The current version of specflow has some issues mapping code lines for scenario outlines. This pull request has a fix for this and was merged (via this PR) in the vNext branch. I have a version with this fix in it installed and I have just checked and when I choose 'Open Test' or double click on a test in the test explorer I get taken to the scenario line in the test explorer.
In order to use it you'll need to build a version of specflow yourself I thin from the 'v2' branch, at least until a beta version is published on nuget.
In order to use the v2 branch you need to checkout the code and build it. As a result of this you should end up with a nuget package in \SpecFlow\Installer\NuGetPackages\bin\
. You will probably want to update the version number in the specflow.nuspec so that you get a proper version number. Once that's done you need to put the nuget package in a folder and then tell visual studio the that folder is a nuget source. Then you can install the nuget package (after uninstalling the old one) and you should be good to go. If it doesn't work then it might be because the extension needs to be updated. Searching the machine for the specflow dlls and replacing them with the newly built versions is probably the best way to go, as the ide integration is a separate package now.
Any other problems let me know, I'll do what I can to help.