Yes.
- The icons can be moved freely and arranged in any order you like
- The icons can be sorted alphabetically. Point the cursor to an empty spot on the Desktop and right-click, then left-click on Sort by [Name, Date, Size, or Item Type].
No.
- There is no way to set or fix the order of the icons. Now, they will not change order if you don't move them.
- However, going into Safe Mode or reducing the screen resolution setting may cause the icons to be reordered so none of them are missing from view.
Also
- Auto Arrange will "permanently" sort them by your chosen Sort by choice
- The icon size can be changed as well.
I wish I had a fix for this one. Like many, I'll group some icons together.