I frequently need to use accented letters and for years have used the USA International keyboard for this option. So I was disappointed to find that Ubuntu Gnome no longer includes this as an option when selecting keyboard layouts.
This morning I need to write an email in Spanish and discovered that the very long list of keyboard layouts available in Ubuntu 16.10 does not include the USA International keyboard.
Does anyone know a work-around for the unavailability of the USA International keyboard?