Why.... is it at the bottom?
It was nice being first class touch in the button we all clicked to the top right.
It would be FIRST in the list.
No sense going into new a LAYER to find the command.
There's not even a New Layer shortcut, that I know of.
Ok, switching between Wireframe/Color view per layer is cool.
Maybe you could look here
https://community.coreldraw.com/talk/coreldraw_graphics_suite_x8/f/coreldraw-x8/55858/create-a-layer-above-below-the-current-layer
Maybe I'm misunderstanding the question, but doesn't the button in the bottom left corner of the Objects docker do what you are looking for?