Keyboard Commands
Task Commands
Click on the Task Pane, then...
Insert Key
Adds a sub-task to a task
Enter Key
Adds a "sibling" task to a list of tasks
Delete Key
Removes a task after asking politely if you would like it removed.
Cursor Keys
Navigate the tree
Asterisk (*) on Keypad
Show all tasks in a sub-project
Minus (-) on Keypad
Hide subprojects
Plus (+) on Keypad
Show subprojects
F2 Key
While on a task allows you to quickly edit it's name
CTRL+C
Copy
CTRL+V
Paste
CTRL+X
Cut
CTRL + Mouse Select Task
Multi-select
Grid Commands
Insert Key
Adds a sub-task to a task
Enter Key
Adds a "sibling" task to a list of tasks
Delete Key
Removes a task after asking politely if you would like it removed.
Cursor Keys
Navigate the tree
Asterisk (*) on Keypad
Show all tasks in a sub-project
Minus (-) on Keypad
Hide subprojects
Plus (+) on Keypad
Show subprojects
F2 Key
While in any cell
CTRL+C
Copy
CTRL+V
Paste
CTRL+X
Cut
CTRL + Mouse Select Task
Multi-select
CTRL + B
Bold
CTRL + I
Italic
CTRL + U
Underline
SHIFT + ALT + <CURSOR KEY>
Move around tasks position up, down, indent and outdent

Note that these main keystrokes for editing tasks are identical to MindManager keys, intentionally so that MindManager users will feel comfortable brainstorming tasks and activities in JVCGantt.