This question already has an answer here:
In Ubuntu 14.10 LTS, I was able to set a terminal tab's title simply by right-clicking and choosing Set Title. This was using the default terminal application,
In Ubuntu 16.04 LTS, I can no longer set the title, and the terminal application is still
gnome-terminal. The option Set Title is no longer in the menu.
Was this feature removed sometime between 14.10 and 16.04? How can I set a terminal tab's title in Ubuntu 16.04?