I agree.wholeheartedly. This was a feature I used all the time. I believe that it has changed since v3.5. I've been struggling ever since with filling multiple name on tracks, channels, and in the mastering page too.
Now I have to press enter, then grab the mouse to focus on the next field, then double click to open that up, where as I could just hitting tab.
It was simple, but such a time saver.
Please bring it back.