I am just in the tutorial game in Civilization VI. What shall I click to force end of turn even if some units still have move points?

Or at least how can I skip the unit marking "this turn do nothing"?

Note: 

 - space has no effect to skip the unit as it used to have since Civ2 (anyone remembers 640x480 screen in 16 colours?)

 - some other keyboard shortcuts do not work as well (only some: for example numeric + & - work)