I got my first tablet (Samsung Galaxy Tab A (2017), running Android 7.1.1). I am physically disabled, and I'm unable to actually touch the screen. But I can use a computer mouse, so thanks to Android's support for mouse control via a USB OTG cable, I'm able to use the operating system and do most everything.
One thing I haven't found in the operating system, though, is a Menu button like this:
My tablet does have a physical/hardware Menu button -- the button to the left of the home button -- like in this photo:
But since I can't press physical buttons on the tablet, I want to access the Menu with the mouse only, in the operating system. Is this possible?