Often, for some precise tasks such as graphic design, computer-aided design and modeling, as well as editing large and complex documents, it is more convenient to use a mouse with a laptop than a trackpad. Apple thinks carrying a separate mouse can become cumbersome, so it figured out how to embed the mouse directly into the MacBook keyboard.
The idea is described in a patent application filed with the United States Patent and Trademark Office. The documentation is about a regular MacBook keyboard with a scissor system. Only it hides a removable key, which plays the role of a mouse.
The illustrations for the patent show a slide-out key closer to the edge of the keyboard, so it won’t be used often. As planned, the key has a small battery. In the keyboard, it is used as a normal button, and when removed, it turns into a mouse. It will have a position sensor that will allow you to control the cursor on the screen.
Of course, there are doubts that such a mouse will be comfortable to use, since it is too small. But do not forget that this is just a patent, so it will not be surprising if the idea remains on paper.