I use a vertical mouse and I've mapped the extra buttons on it to allow for easier navigation without using the keyboard. It has two buttons near the thumb rest

I use a vertical mouse and I've mapped the extra buttons on it to allow for easier navigation without using the keyboard. It has two buttons near the thumb rest. I've mapped one to be shift so I can hold it to make the scroll wheel scroll horizontally and I've mapped the other to be enter. Clicking the scroll wheel is mapped to ctrl+v. These have made one-handed terminal and design navigation much more efficient.