Platforms
Mac Windows/Linux
Command+Shift-O Ctrl+Shift-O
Open File
Option-Left Alt-Left
Move to the previous opened file
Option-Right Alt-Right
Move to the next opened file
Command+Shift-B Ctrl+Shift-B
Execute Bing search
Command+Shift-P Ctrl+Shift-P
Set right side size in %
Command-L Ctrl-L
Set right side URL
Command+Shift-X Ctrl+Shift-X
Refresh right side
Command+Shift-S Ctrl+Shift-S
Open file at right side
Command+Shift-Z Ctrl+Shift-Z
Execute shell command
Command+Shift-H Ctrl+Shift-H
Help page
Command-S Ctrl-S
Save File
Option+Shift-Q Alt+Shift-Q
Close File
Command-< Ctrl-<
Open Ace Options
Command+Shift-M Ctrl+Shift-M
Create new File
Option+Shift-Left Alt+Shift-Left
Show right side
Option+Shift-Right Alt+Shift-Right
Hide right side
Option+Shift-Up Alt+Shift-Up
Move next right side page
Option+Shift-Down Alt+Shift-Down
Move previous right side page
Command+Shift-C Ctrl+Shift-C
Open dedicated terminal

User defined Aliases
Alias Command

Do you need another help? look at: Splitty website
Help with ACE Editor?
look at: Ace keyboard bindings