In Windows Explorer, in the right-hand pane, the default sort order is
by name, but can be changed to date, size, or any other column heading
by clicking on the column heading, with a second such click reversing
the order (though I think folders always stay together, before or after
files).

However, the sorting in the _left_ pane, where the tree structure is
shown, seems to be (increasing) name order only.

Anyone know if it can be changed?

I don't actually have any need or want to change it; I just wondered.
--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

Lewis: ... d'you think there's a god?
Morse: ... There are times when I wish to god there was one. (Inspector Morse)