Yes, you can use a mouse with your iPad — here's how to connect and use a Bluetooth mouse

You can use a wireless mouse with an iPad that's running iPadOS 13.4 or later, which includes every iPad Pro and most other ...

How to use your Mac's special touchpad commands, and edit them if you're not satisfied

Your MacBook's touchpad has a number of different commands that can let you zoom, rotate images, reveal extra options, and more.