Enable the option "Show parent dir also in root of drive".16.11.99 Release Wincmd 4.02 Beta 2
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09.11.99 Added: During internal Drag&Drop, place cursor on subdirectory in OTHER window and press ENTER to open this subdir!
Then, while dragging a file to the other panel try to enter the parent dir in the root of a drive (by pressing Enter or spacebar).
My Computer is opened in the wrong panel.