Hi, you can get the manual here:
http://www.omnigroup.com/ftp/pub/sof...3.0-Manual.pdf
(Direct link to the PDF)
The default shortcut for moving an item to the right is: ⌃⌘→
⌃ is the symbol for the Control key.
⌘ is the symbol for the Command / Apple Key
→ is the symbol for the right arrow key
You can also use ⌘] a little simpler, the second key there is the right bracket.
Hope that helps!