Layout
  

Window List
Navigate via tabs: Sets using tab mode to switch windows
Multiple Lines: Sets using multiple lines to display tabs
Show Tab at Bottom: Sets showing tabs at bottom or top.
Limit width of Tabs: Sets the width limit of tabs

Display Caption Area of Dock Panel
Docking as Tab Style: shows caption area of panels when 
docking as tab style
Window List: shows caption area of window list
Transfer Log: shows caption area of transfer log
FTP Log: shows caption area of FTP log
System Log: shows caption area of system log
Queue: shows caption area of queue window
Task Window: shows caption area of task window
Remote and local: shows caption area of remote and local window.

Remote/Local Window
Use Tab Switching for Remote and Local Window: Sets Using Tab Switching for Remote and Local Window
Use Large Icons for Remote/Local window: Sets Using Large Icons for Remote/Local window

Performance
Disable Update Main FTP Toolbar: Disable this can accelerate the main interface's display speed when you using individual toolbar for each window.
Enable Double Buffer Painting for Dock Panel: Enables double buffer painting for dock panel. Double Buffer can effectively reduce flicker of windows, although this option costs more memory.