Are you used to use the shortcuts in Windows? Well, SAP Business One also have shortcuts, such as "Ctrl + P" for printing the current document, report, journal entry, "Ctrl + J" for displaying transaction journal and so on. If you are interested, actually we have a blog for all the shortcut in SAP Business One. Come and see by yourself.
From SAP Business One 9.2, we also enable you to adjust the keyboard usage to best fit your habitat. Go to Administration > System Initialization > General Settings, click Services tab, and choose the alternatives under “Alternative Keyboard Usage”. Here you may “Use Numeric Keypad ENTER Key at TAB Key”, “Use Numeric Keypad DOT Key as Separator on Display Tab”, and “Enable Document Operations By Mouse Only(Such as Add, Update, OK)".