@Mickiete Just sorted it. Long press on icon. When the icons go grey, and a circle appears with a dash in it on the icon top righthand corner, and a bar at the bottom shows "Share, Unfavourite and...

@Solla-topee thanks for the reply, but it does not work. If I hold finger on icon and try to move it, the whole screen moves. There is a reallocate button but this is not what I am after.

Is there a way to rearrange the icons on the screen ?