Hello,
It seems that my latest version of DT (1.9.2) no longer allows the option-click on a folder arrow to open ALL enclosed folders. It will still CLOSE all the enclosed folders, but not open them.
Hopefully there’s a fix in the next update. It seems to affect DT 1.9.2 on my Macs running OS 10.3.3 and 10.3.8.
Thanks.