Is there an easy way to move the big toolbar along the top of the screen, rather than a double column at the side. When I try to do this, I can easily get it to dock to the other side either by moving it right to that side or by double clicking when it’s over there. But if I try to move it to the top, nothing happens, and when I double click it, it snaps back to its original position on the side?
No the large toolset is a fixed pair the only work on the sides.
But you can make your own toolbar with all those tools and put it at the top.