Using the "Save As" option will NOT put that saved image in the Lightroom catalog. You have to use the Save option. You can control whether that image is saved as a PSD or TIF file by going to the Lightroom preferences and look at the external editing tab. What ever you have chosen as the format there is what will be saved.
Personally, I don't like to store JPEG images in Lightroom unless that was the format taken in the camera. A JPEG image can always be exported when needed to share on the web or send to a lab. Some people look at the JPEG as the "finished" image. I don't like that idea. If I decide later to make changes to the raw image, then I have to export another "finished" image. I prefer to just work with my raw images and the files that come back from Photoshop. Those are my master images. JPEGs are only created when they are needed.
Thanks for the help. I was on the phone with a tech form Adobe for at least 45 minutes after waiting for at least an hour on hold to get to him. After the 45 minutes and having him take control of my computer, he said that it can’t be done. So, thanks for the advice. I greatly appreciate the time you took to answer my question.
After I switched to psd in the preferences tab I am able to now save the images from CC 2015 back to Lr as a psd file. But when I am done with all of my improvements and now want to flatten the image and save it as s jpg, and email it, Photoshop/Lr does not save it back into the Lr catalog, but it does save it in the Bridge. Is there a way to save it back to Lr as a jpg file?