In addition to what Steve has posted above, You may need to right click at the top bar and enable the ‘Project Root Key’ control to be on-screen too:-
To get the visibility menu up to define what appears on your top toolbar, simply right click where i’ve circled red. Or hit the cog button (Circled blue).
Edit: Sorry, i see @Starsprinkler has posted in the meantime, I’ll keep the screenshot here as it may help. 