As a spontaneous power-gag (not mentioned in change log) I added the secret scripting command "treeless" (a toggle, no arguments). Run ::treeless once and you can enjoy superfast treeless browsing! Run it again, and you are back to normal.
Beware, there are some glitches, and, of course, you should be careful with scripts that might rely on the current tree position.
One of the more obvious glitches is that when changing the path on a locked tab there will be no treeless browsing because I was too lazy to adapt this part of the code.
Another glitch is: you cannot open a path in a new tab by holding Shift or via tree context menu. It will all stay in the current tab.
However, if you just want to jump around quickly via Address Bar, Tabs, Catalog, Favorites, History, Hotlist, GoTo, UDCs, Scripts etc. ... then treeless browsing is your friend. All the time-consuming tree-work simply does not happen.
A "synch tree" button/command may be added later... depends on your reaction.
XYplorer Beta Club