How do you personalise the home screen?

I am sure I read on here somewhere that you can personalise the icons on the home screen and set up your preferred short cuts?
Can anyone advise how I do this please?
Cannot seem to find it in settings etc

Thanks y'all

It's in the settings page. I think there are three buttons/soft keys you can configure.... I put the camera on one so I didn't have to go through the extras menu.

There is not really a lot to choose from.

I wish you could swap the "valet" button for a "winter wiper park" button. I've never used the valet button and its a pain to change the winter park if you forget and just nip back outside to do it unless you actually get in the car shut the door and start the engine, you have a bunch of errors and warnings to get through before you can bring up the menu.