What happens when you “swipe up” from the bottom of the iPhone?
…you get the Control Centre. Well, you do if you have iOS11 (or later)
A handy feature that gives you quick access to a range of iOS features.
By default, you get access to your music player, airplane mode, turning Wi-Fi on and off, as well as things like “Do Not Disturb” and adjusting screen brightness and volume.
Although these basic icons are not customisable, everything below “Screen Mirroring” is up for grabs. So you can go to Settings – Control Centre – Customise Controls and work from there…
How do I customise the Control Centre?
This video gives you a 3 minute helping hand on how to customise Control Centre: