The diary starts with everyone in alphabetical order of first name. You can change that, so the people you look at most come first, or so someone sits next to the person they work with.
Change the order
On the Diary on a computer, open All Engineers and tap Change order at the bottom of the list.
Use the arrows beside each name to move them up or down. Top of the list is the left-hand column on the Day view and the top row on the Week and Month views. Each move saves as you tap it, so there's no Save button. Tap Done when you've finished.
You need the manage team permission to change it.
Worth knowing
Everyone sees the same order. It's set for the whole business, so the office, the owner and the lads all see the diary laid out the same way.
Someone new goes at the end. Anyone who joins after you've set the order turns up after everyone you've placed. Move them up if you want them somewhere else.
Jobs with nobody on them still come last. The Unassigned row always sits at the bottom, wherever you've put everyone else.
The phone diary isn't affected. It shows the day as one list in time order, so there are no columns to arrange.