Expandable folder deeper level with Alt+click on expand button

Seen this as new in 13.20x

Can we configure this like macOS, Option + Right Arrow expands all sub folders recursively, Option + Left Arrow collapses all sub folders recursively.

Create buttons with hotkeys set as desired.

Almost there,

This works as expected (I tried 0 hoping to mean all)
Go EXPANDBRANCH=levels:10

But this doesn't respond:
Go EXPANDBRANCH=collapse,levels:10

How about additional values for levels, like ALL or MAX

Because specified value like 3 when there's 2 isn't going to work.
and, we don't know how many levels there are anyway.

and then for some reason, the Up arrow ends jumps into the File Menu, IDK can't find a pattern why it does that.

Might be worth a try: Expand Folders Command

Works fine here:

Go EXPANDBRANCH=levels:99

lxp

Collapse dude.
Expand works here too!.

I support the OP's two feature requests:

  1. In Directory Opus 13.20.1, Go EXPANDBRANCH which lets you expand multiple levels at once (e.g. Go EXPANDBRANCH=levels:3 would expand three levels of sub-folders automatically). A corresponding command ought to exist for collapsing multiple levels of subfolders automatically.
  2. Additional values for levels, like ALL or MAX, would provide greater clarity on the purpose of a command than a artificially large "level=99."