Disable "Separate Tree(Ctrl+Shift+F8)" dynamic pos

[Joeyy]

Image: http://img.hb.aicdn.com/5e66cd1624acce281639ce59808a0c9631c5c4bcffdb-Q65byu_fw658
With the "Separate Tree" open, when I open the folder in the main window, the "Separate Tree" would change to the same folder dynamically. How to disable the dynamic positioning function?

[Stefan2]

Me think it is not possible?

That is the default desired behavior?

http://ghisler.ch/board/viewtopic.php?t=45767&highlight=separate+tree